Trending December 2023 # Daylight Saving Time (Dst) Setting Causes High Cpu & Memory Usage On Windows 11/10 # Suggested January 2024 # Top 16 Popular

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Let’s look at a typical scenario where you can encounter this issue of the DST setting causes high CPU & memory usage on Windows 10.

You have a computer that’s running Windows 10 to use a time zone where daylight saving time (DST) changes occur at midnight instead of at 2:00 AM. In this situation, you may experience the following issues.

The chúng tôi process consumes 100 percent of CPU resources. Therefore, system performance and battery life decrease dramatically. This issue may affect thermal management on small form factor devices, as the process keeps running in a loop doing time conversion calculations.

The pagefile consumes excessive disk resources, which triggers high disk utilization.

Excessive memory use occurs.

Excessive disk, CPU, or memory use causes the computer to hang or freeze.

Daylight Saving Time setting causes high CPU & memory usage

This issue of the Daylight Saving Time (DST) setting causes high CPU & memory usage on Windows 11/10 because of a race condition in the chúng tôi process (a generic host process for Windows services) that runs one of the chúng tôi scheduled tasks. This scheduled task runs according to the time set on the computer. This issue occurs only on the day when DST changes.

The chúng tôi file is loaded when DST changes occur at midnight instead of 2:00 AM.

If you’re faced with this issue, try our recommended solution or workaround (per your requirement) described below to mitigate the issue.

To resolve this issue, upgrade your computer to the latest version of Windows 10.

If, for one reason or the other, you prefer to stay on your current Windows install and not upgrade or upgrade to the latest version of Windows or you’re already running the most current version of Windows. Still, the issue is not resolved. You can try the workaround offered below.

To work around the issue, you need to disable the Power Efficiency Diagnostics task by using one of the following methods.

Use the Task Scheduler UI (User Interface)

Use the Command Prompt

Let’s look at the description of the steps as it concerns each of the methods to resolve the DST setting that causes high CPU & memory usage on Windows 10.

1] Use the Task Scheduler UI (User Interface)

To use the Task Scheduler to disable the Power Efficiency Diagnostics task, do the following:

Press Windows key + R to invoke the Run dialog.

In the Run dialog, type taskschd.msc and hit Enter to open the Task Scheduler console.

In the Task Scheduler console, navigate to the following:

You can exit the Task Scheduler console.

Read: How to Automatically adjust clock for Daylight Saving Time in Windows

2] Use the Command Prompt

To use the Command Prompt to disable the Power Efficiency Diagnostics task, do the following:

Press Windows key + R to invoke the Run dialog.

In the Run dialog box, type cmd and press CTRL + SHIFT + ENTER to open Command Prompt in admin/elevated mode.

Copy and paste the command below in the command prompt window and press Enter.

schtasks /Change /TN "MicrosoftWindowsPower Efficiency DiagnosticsAnalyzeSystem" /DISABLE

You can now exit the command prompt once the command executes. But you can query the status of the task to confirm that the changes have been applied by running the following command:


chtasks /Query /TN "MicrosoftWindowsPower Efficiency DiagnosticsAnalyzeSystem"

The output should appear as follows:

AnalyzeSystem N/A Disabled

That’s it!

After completing the workaround or the solution itself, the issue of high CPU & memory usage on Windows 10 caused by the Daylight Saving Time (DST) setting should be resolved.

How do I turn off daylight savings on my computer? Do computers change time automatically?

Yes, they do, based on the selected region and time zone. However, if you move to a different region, you must change accordingly. It’s essential to have a time zone that matches the WIFI or Ethernet work, as some applications depend on it. That said, you can always use additional clocks to track multiple timezones.

You're reading Daylight Saving Time (Dst) Setting Causes High Cpu & Memory Usage On Windows 11/10

Adjust For Daylight Saving Time Automatically Is Grayed Out In Windows 11/10

If you live in the USA or some other countries where Daylight Saving Time is available, but find that the setting is not working on your Windows 11/10 computer, then this post will show you is how to fix it. If the Adjust for daylight saving time automatically option is grayed out in the Windows Settings panel, here are some troubleshooting suggestions that might be helpful for you.

What is Daylight Saving Time setting in Windows 11/10

Daylight Saving Time or DST is a common practice in the United States and some other regions. If the Daylight Saving Time option is activated on your PC, your system will forward the clock one hour from standard time in the summer and revert the change in the fall. It does this so that users can utilize the sunlight or daylight better during that period.

Like some other devices, Windows 10 has this feature as well. However, if it is not working on your PC or the option is grayed out in the Windows Settings, you can fix it with the help of this guide.

Adjust for daylight saving time automatically is grayed out

To fix Daylight Saving Time is grayed out error in Windows 11/10, follow these suggestions-

Change Time Zone

Enable DST from Registry Editor.

1] Change time zone Windows 11

Select Time & language settings from the side panel on the left.

When directed to a new screen, locate the Time zone heading and hit the drop-down menu next to it, and select a different time zone where Daylight Saving Time is available.

Windows 10

As mentioned earlier, DST is available only in a few countries around the world. You may, therefore, need to change the Time Zone so that Windows 10 can enable this functionality.

Press Win+I to open Windows Settings, and go to Time & Language setting. Make sure that you are in the Date & time tab. If so, you can expand the Time zone drop-down menu, and select a different time zone where Daylight Saving Time is available.

2] Enable DST from Registry Editor

If the solution, as mentioned above, is not working for you, you must force the adjustment from Registry Editor. For that, open Registry Editor on your PC, and navigate to this path-


Make sure that the Data is set to zero (0). If not, you can set that specific data and check if the DST setting is enabled or not.

If you want to force-update the DST adjustment, you can set the Data to one (1).

I hope this works for you.

What is the purpose of Daylight Savings Time?

The sole purpose of Daylight Saving Time is to make better use of daylight by tweaking the clocks to move an hour of daylight from the morning to the evening. It is done during the summer months and hence, also known as Summer Time. Research suggests Daylight Saving Time helps in cutting short the entire country’s electricity usage by a small but significant amount.

Read: Daylight Saving Time setting causes high CPU & memory usage

What is the rule for Daylight Savings Time?

The daylight saving time (DST) period in the U.S. kickstarts each year on the second Sunday in March when clocks are set forward by one hour. The process is reversed and changed back to standard time on the first Sunday in November when DST ends.

Related: Windows does not update Daylight Savings Time (DST) change.

How To Fix Microsoft Compatibility Telemetry High Cpu

The Microsoft Compatibility Telemetry or Windows Compatibility Telemetry is a program that periodically sends your diagnostic and usage data to the Microsoft server. Microsoft uses this information to introduce new features and resolve bugs in the system.

By default, your system runs this process periodically, during which it can consume a significant portion of your system resources. If it causes high CPU usage, your computer slows down considerably and impacts you from doing any tasks on your system.

The only way to resolve the issue is by disabling this process. There are many ways to do so on a Windows system, which we have mentioned below. Depending on your current system configuration, you may need to perform one or more solutions to resolve your issue.

The Microsoft Compatibility Telemetry is a part of the complete Telemetry or Diagnostic Data windows component. Windows Settings allow you to choose if you want to send only the required diagnostic data to Microsoft or optional data as well.

If you enable sending optional diagnostic data, this telemetry process will use more resources. So you can try disabling this option and see if it fixes the issue.

Press Win + I to open Settings.

Go to Privacy & Security or Privacy and then Diagnostic & feedback.

Select Delete under Delete diagnostic data.

You can also try disabling the Connected User Experience and Telemetry service. The Microsoft Compatibility Telemetry program uses this service for its operation. So, disabling the service prevents the program from running. To disable the service,

Open Run by pressing Win + R.

Type services.msc and press Enter to open Windows Services.

It is also possible to disable optional telemetry operations on your system using the Local Group Policy Editor to avoid high CPU usage of this process. Here’s how to can do so:

Open Run.

Type gpedit.msc and press Enter to open the Local Group Policy Editor.

Restart your PC to apply the change.

Windows Home users do not have the Local Group Policy Editor by default. In such scenarios, you can disable the Allow Telemetry setting from the Registry Editor.

Open Run.

Type regedit and press Enter to open the Registry Editor.

Navigate to ComputerHKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsDataCollection

Then, go to ComputerHKEY_CURRENT_USERSOFTWAREPoliciesMicrosoftWindowsDataCollection

The different telemetry processes run at separate intervals or instances. By default, Microsoft Compatibility Telemetry runs every day at a certain time by default regardless of whether the user is logged in or not.

If you are experiencing high CPU usage due to this process, you can disable this task through the Task Scheduler. Here are the necessary steps:

Open Run.

Type taskschd.msc and press Enter to open the Task Scheduler.

If you don’t think you’ll ever need to send compatibility diagnostic data to Microsoft, you can permanently delete the Microsoft Compatibility Telemetry program or CompatTelRunner.exe from your system.

However, this program is under the ownership of Windows NTTrustedInstaller by default. So you will need to take ownership and provide full permission of the file to your user account to delete it. Here is the complete process:

Log into an administrator account on your PC.

Open Run.

Type cmd and press Ctrl + Shift + Enter to open the Elevated Command Prompt.

Enter the following commands to take ownership of the CompatTelRunner.exe file and provide permissions to modify it:

takeown /f “%WinDir%System32CompatTelRunner.exe” /a

Then, you can delete the file using the command del “%WinDir%System32CompatTelRunner.exe”

Alternatively, you can rename it to something else to leave a backup. To do so, use the command: ren “%WinDir%System32CompatTelRunner.exe” CompatTelRunner.old

.Net Runtime Optimization Service High Cpu Windows 11/10

If you’ve experienced your computer suddenly slowing down, you might have checked the Task Manager and found a process called .NET Runtime Optimization Service (Mscorsvw.exe) causing high CPU usage in Windows 11 or Windows 10. This process can be puzzling, but this article will help you understand what it is and provide you with solutions to resolve the high CPU usage issue.

Also see: What is Microsoft Edge WebView2 Runtime and How to Uninstall it?

.NET Runtime Optimization Service, also known as chúng tôi , is a core component of Windows. It is a Windows service that pre-compiles .NET assembly files, making the launch of programs made in .NET framework much faster.

You must have used some apps built with .NET Framework without even realizing it. The .NET Runtime Optimization Service is responsible for optimizing your Windows to make apps launch much faster. By default, the service runs in the background when it detects that your PC is in idle mode, and once the compilation is complete, it will stop.

However, depending on the number of .NET programs you have installed, the size of those programs, and your PC’s performance, it may take some time for the service to complete its run, causing high CPU usage in Windows 11/10 during the process.

The service can also appear in multiple chúng tôi processes, causing high CPU, RAM, or Disk usage spikes up to 100%.

You do not need to worry about this process as it will go away by itself once its work is done. It will only run when a new app or program made in .NET Framework is installed on your system, or when you install the .NET Framework Redist.

If the .NET Runtime Optimization Service runs endlessly at high CPU usage, the problematic program might be the one causing the issue. Instead of disabling the process, try fixing or removing the program first.

If the CPU resource consumption by the process bothers you, or if you want to stop the service entirely, read below.

Before disabling the service, try to speed up the process. By doing this, it can get its work done faster, and you can then get on with other things.

After the change, the .NET Runtime Optimization Service may cause temporary high CPU usage and spike up to 100%, but this will allow the service to run at maximum speed, completing its work faster. Once its job is done, it will go away by itself.

We don’t recommend disabling the service, but if you prefer to do so, you can disable the .NET Runtime Optimization Service in the Services setting. Here’s how:

Press Win+R keys on your keyboard to open Run window.

Type chúng tôi and hit Enter.

Close the Services panel and restart your PC to see if the issue is resolved.

If you have no access to the Services panel or you just prefer to do it the other way, you can disable the service via Registry Editor. Please keep in mind that registry editing may cause serious problems if it is done incorrectly. Backup your registry before modifying anything and do it at your own risk.

Go to the start menu or press Win+R key. Type regedit to open Registry Editor. Navigate to the following registry folder. If you see multiple clr_optimization folders, select the latest version number.

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetservicesclr_optimization_(version number)

Once done, close the Registry Editor and restart your computer. Verify if the high CPU usage problem is fixed.

The .NET Runtime Optimization Service is a core component of Windows that pre-compiles .NET assembly files so that apps made in .NET can launch faster. Although the service may cause high CPU usage in Windows 11/10, it will go away when its work is done.

If you experience endless high CPU usage, try to fix or remove the problematic .NET program first. If you want to stop the service entirely, you can disable it temporarily or permanently via Task Manager or Registry Editor, respectively. However, we do not recommend disabling the service, as it is typically doing something good for your PC.

Fix Ubisoft Connect High Cpu Usage The Right Way

Is Ubisoft Connect taking a high CPU usage on your Windows  PC? Ubisoft Connect is a popular game launcher for Windows PC to play a variety of Ubisoft games. Many users have reported that the Ubisoft Connect app consumes a high CPU usage on their PC. This results in the deterioration of overall system performance and other apps and games. Hence, it becomes crucial to fix the problem.

Now, you might be experiencing the issue at hand due to several reasons. It could be caused if your Ubisoft Connect app is not updated or if there is a virus present on your computer that is triggering the issue at hand. A corrupted installation of the app can be another reason causing the high CPU usage of Ubisoft Connect.

Some of the affected users experienced the issue at hand right after enabling the overlay option. In that case, the official support team has recommended disabling the in-game overlay on Ubisoft Connect to fix the problem.

If you are also experiencing the same problem and want to get rid of it, this post will help you. Here, we will be discussing different fixes that will resolve the problem of Ubisoft Connect’s high CPU usage.

Fix Ubisoft Connect High CPU Usage ton Windows PC

To fix the issue of high CPU usage of Ubisoft Connect on your Windows PC, you can use the below solutions:

Reboot your computer.

Run Ubisoft Connect as an administrator.

Disable Ubisoft Connect Overlay.

Make sure that the Ubisoft Connect app is up-to-date.

Perform a virus scan on your PC.

Set the priority of Ubisoft Connect to Low.

Reinstall Ubisoft Connect.

1] Reboot your computer

Restarting your PC seems like an effective fix to resolve the issue at hand. It will clear the memory and eliminate all the temporary issues which might be causing high CPU usage of Ubisoft Connect. So, if the issue is triggered due to a temporary glitch in your system, rebooting would fix it. Simply restart your computer and then open Ubisoft Connect to check whether it still takes high CPU usage or not. If yes, you can move on to the below fixes to resolve the problem.

2] Run Ubisoft Connect as an administrator

Here is how you can run Ubisoft Connect with admin privileges always on Windows 11/10:

Firstly, close the Ubisoft Connect app completely using Task Manager.

Now, from the appeared context menu, select the Properties option and go to the Compatibility tab in the Properties window.

Next, tick the Run this program as an administrator checkbox under the Settings section.

If the problem remains the same, you can move on to the next potential fix to resolve the issue of high CPU usage of Ubisoft Connect.

3] Disable Ubisoft Connect Overlay

As per several user reports, the high CPU usage of Ubisoft Connect occurs after enabling the overlay feature. Hence, it is recommended to disable the Ubisoft Connect overlay and then see if the problem is fixed or not. Here are the steps to do so:

 Firstly, go to the Ubisoft Connect app and ensure that you have logged in with your Ubisoft account.

Next, tap on the three-bar menu button present in the top left corner.

Now, choose the Settings option from the appeared options.

After that, navigate to the General tab and disable the Enable in-game overlay for supported games option by unchecking the checkbox.

Finally, restart the Ubisoft Connect PC application and check if the app still consumes a high CPU usage or not.

If the problem is still the same, try the next potential solution to get rid of the issue at hand.

4] Make sure that the Ubisoft Connect app is up-to-date

You might be dealing with the issue at hand if you are using an old version of the Ubisoft Connect app. There might be a bug in the app which is why it is taking high CPU usage. The developers keep releasing new updates to address previous bugs and improve app stability. Hence, it is always recommended to keep your apps up-to-date. So, update the Ubisoft Connect app to its most recent version and see if the problem is fixed or not.

You can download the latest version of the app from its official website. And, then install it on your PC to update the existing Ubisoft Connect app. After that, launch the app and see if the high CPU usage of Ubisoft Connect is fixed or not.

Read: A Ubisoft service is currently unavailable on Windows.

5] Perform a virus scan on your PC

If none of the above solutions worked for you, try running a virus scan on your Windows PC. There might be some malware or virus which is causing the issue at hand. So, running a virus and eliminating or quarantining potential threats and viruses might help you fix the issue. Open your antivirus software and run a Quick scan to identify existing viruses or threats on your computer. Once the scan is done, you can remove or quarantine identified threats. After that, reboot your computer and run Ubisoft Connect to check if the problem is fixed or not. If not, try the next potential fix.

6] Set the priority of Ubisoft Connect to Low

The next thing you can do is set the priority for Ubisoft Connect to low and then check if the problem is resolved or not. It is a workaround if you want to reduce the CPU usage of Ubisoft Connect and free up some system resources for other applications and games. You can use the Task Manager app to do so. Here’s how to do that:

Firstly, press the Ctrl + Shift + Esc hotkey to open your Task Manager app.

Once done, reboot your PC and launch Ubisoft Connect to check if the problem is fixed or not.

See: Unable to start the game on Ubisoft Connect.

7] Reinstall Ubisoft Connect

The last resort to fix the issue is to reinstall the Ubisoft Connect app on your PC. It is a known fact that corrupted or infected installation of an app or game triggers issues like high CPU usage. Hence, if the scenario is applicable, reinstall a clean version of Ubsifot Connect and see if the problem is resolved.

To reinstall the app, first, uninstall the Ubisoft Connect app from your PC. Here are the steps to do so:

First, open Task Manager and close all the processes related to Ubisoft Connect.

Then, go to the installation directory of Ubisoft Connect on your PC and create a backup of the savegames folder.

After that, select the Uninstall option and follow the prompted instructions to remove Ubisoft Connect from your computer.

Once done, make sure to remove the residual and leftover files of the app to completely uninstall the app.

Finally, reboot your PC and download the latest version of Ubisoft Connect from its official website. You can then install the app again and see if the problem is resolved or not.

Hopefully, the Ubisoft Connect app will run smoothly now without excessive CPU usage.

Now read: Fix Ubisoft Connect app not working on Windows PC.

How do I fix 100 CPU usage Rainbow Six Siege?

If Rainbow Six Seige is taking excessive CPU usage, try lowering your graphics settings and see if the problem is resolved. You can also use some other fixes like restarting your computer, launching Rainbow Six Siege as an administrator, running a virus scan, updating the game, etc. If nothing works, you can reinstall the Rainbow Six Siege game to fix the problem.

How do I get rid of Ubisoft Connect CPU below?

To get rid of Ubisoft Connect, you can follow the seventh solution mentioned in this article. In other words, you can use in-built application uninstaller included in the Windows Settings. Apart from that, you can use third-party software uninstaller tools as well.

What Is Spooler Subsystem App? Why Does It Have High Cpu Usage

Spooler Subsystem apps are integral in operating a printer and giving it commands to print, scan or send a fax. This Windows service is like a middleman between your PC and the printer. 

Thankfully, this issue is quickly resolved mainly through performing a software update or a quick clearing of the printer queue. The only way to tell if the spooler subsystem app is malfunctioning is when you open the task manager and notice that it’s taking too much of your CPU resources. 

Is the Spooler Subsystem App a Virus?

The spooler subsystem app comes by default with any Windows operating system and is completely safe and made to serve a specific purpose. However, malware is out there that masks ordinary processes to circumvent your antivirus systems.

What Causes High CPU Usage for the Spooler Subsystem?

Here is a list of the most common reasons why you get very high CPU usage for this application:

Your Printing queue is full: This is perhaps the most common reason why you get high CPU usage for the Spooler subsystem app.

Queuing of files set for printing enters a loop: Any loop would cause very high CPU usage, as it goes on indefinitely until stopped.

Your printer has encountered an error: If the printer encounters an error, it might constantly try to resolve it with the operating system – causing abnormally high CPU usage

Outdated drivers: In rarer cases, the problem is caused due to an improperly configured PC or printer driver.

Your system has malware masking as a Spooler subsystem app: Some malware are specially designed to mimic windows processes in order to bypass the defenses.

How to Fix Spooler Subsystem App With a High CPU Usage?

As a non-essential Windows process, seeing that this application takes up more than 1% of your CPU is abnormal and is, in essence, wasted performance. This article will show you how to fix high spooler subsystem CPU usage as well as how to prevent this bug in the future. Here are the different ways to fix it:

Use the Built-in Troubleshooter

Let the process finish, restart your PC and check if the spooler subsystem’s high CPU issue persists. 

Clear the Printer Queue

Here are the steps to clear the printer queue:

Disable the Process

A quick solution to temporarily resolve this issue is by forcing windows to stop running the process manually. Here are the exact steps to do so:

You will notice that it is completely gone if you check your task manager. While this fix works wonders, the con is that you might have to perform it every time you encounter a high CPU usage problem.

Update Your Drivers

Having the latest drivers for both your Printer and PC can prevent a spooler subsystem from malfunctioning. In general, there are two ways to update a printer’s drivers. The first is by using the built-in Windows driver update function, and the second is by using the printer manufacturer’s driver assistant application. 

Since every printer manufacturer has a slightly different proprietary app that can install drivers, we will show you the universal way to do so via the Windows Driver Update function:

After the procedure is finished, restart your computer and check if the high CPU usage issue persists. 

Reset Your Printer 

This last resort measure involves performing a factory reset on your printer. When a printer’s internal memory and settings are reset, this might clear up an error in the printing queue system that causes abnormally high CPU usage. 

Every printer has a different way to perform a factory reset; some require you to go to the printer’s settings via its built-in interface, while others require a simple prolonged holding of the power button. In any case, check your printer’s instruction manual online to find the specific steps to perform a factory reset.

After the reset is done, restart your devices, then open up your Windows task manager and check if the issue persists. 

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