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At this point Windows 7 is a nearly seven-year-old operating system, and Service Pack 1 was released way back in 2011. Up till now, whenever you installed Windows 7, you had to go through an extensive list of security and non-security Windows updates and install them with multiple reboots in your way. Obviously, this is not a fun task for the majority of Windows users. To simplify things Microsoft released the “Windows 7 SP 1 Convenience Rollup” update which enables you to download and install all the Windows updates in one go. Here is how to do it.
What is the Convenience Rollup UpdateIf you’ve used Windows for any length of time, you might be familiar with the “Service Packs.” Generally, service packs are nothing but a collection of all the enhancements, updates and fixes over a period of time. Convenience Rollup update is just like that but is being offered as a separate package which includes all the security and non-security updates and fixes from February 2011 to May 2023.
Install Convenience Rollup UpdateEven though the actual installation procedure is nothing hard, it is convoluted as the update isn’t being distributed through the Windows update. Instead, you need to download it from Microsoft Update Catalog.
To start, make sure that you are on Windows 7 Service Pack 1. If you are not sure whether you are on SP1 or not, simply press “Win + R,” type winver and press the Enter button.
This will open the “About Windows” window. Here you will find your current service pack next to the build number.
The next thing you need to do is install the April 2023 Servicing Stack update. Head over to the official website, download the update according to your system architecture (64-bit or 32-bit) and install it like any other software.
Now you are ready to install the Convenience Rollup update. Since the update is being delivered via Microsoft Update Catalog, you need to fire up your Internet Explorer browser to visit the site, as this website doesn’t work with any other browser.
After installing the ActiveX plugin, the website will show you the Rollup update for Windows 32-bit, 64-bit, and Windows Server 2008 64-bit system.
Now, select a location to save the downloaded file to on your hard disk. In my case I’ve selected my Desktop as the save location.
With the above action, the download will start, and once downloaded, install it like any other Windows software.
However, before starting the installation procedure, make sure that you’ve saved all your work, as it might take some time to install all the updates, and you might also need to reboot your system.
Vamsi Krishna
Vamsi is a tech and WordPress geek who enjoys writing how-to guides and messing with his computer and software in general. When not writing for MTE, he writes for he shares tips, tricks, and lifehacks on his own blog Stugon.
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Windows 7 Update Error 80072Efe
Windows 7 Update Error 80072efe [Solved] This error code can be solved with ease using our guide
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The Windows could not search for new updates 80072EFE error can appear due to various reasons, including malware.
Sometimes anti-malware software might fix this error for users of Windows 7 and 10.
In addition, some users have confirmed a specific update package can fix this error message.
Clearing certain system folders might also fix the Windows could not search for new updates 80072efd error.
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The 80072EFE error can arise in Windows 7 and 10 when some users try to update those platforms.
The Windows 7 update error 80072efe issue says Windows could not search for new updates. Consequently, Windows doesn’t update when that error occurs.
What causes the code 80072EFE error in Windows 7?According to the users, this issue might appear after a clean install of Windows 7 because the support has ended in January 2023.
On the other hand, the error can be caused by your internet connection problems so you better check this factor as well.
The Windows could not search for new updates error message can be also found in the following versions:
“WindowsUpdate_80072EFE” “WindowsUpdate_dt000”
Windows could not search for new updates 80072efe Windows 7 and 8
Windows could not search for new updates 80072efe server 2012
Windows could not search for new updates 80072f8f
Windows could not search for new updates 80244o2f
Windows could not search for new updates 80072efd
What does the Windows Error Code 80072efe mean?Microsoft Windows 7 update error 80072efe means that there is a connection interruption when downloading the Windows Update.
When your PC fails to connect with the Windows servers, you will not be able to download the update and get the Windows 7 update error 80072efe.
Apart from failed communication with the servers, there are a few other common reasons that could trigger this error code.
The Windows Update database is corrupted.
The update wasn’t installed correctly earlier.
Antivirus software is configured to block the Windows Update service.
The Background Intelligent Transfer Service (BITS) service does not receive a content link header.
There are some issues in the registry files.
An important system file related to Windows Update is missing on your PC.
1. Run a malware scanThe first step is to determine if the issue is caused by viruses, intrusive apps, or other malicious attacks. We recommend you run a full PC scan with an antivirus with a high detection rate, such as ESET Antivirus.
ESET Antivirus has a strong firewall and network inspector to ensure you always have a safe connection. It uses multi-layered protection which means it has multiple ways of detecting all sorts of threats.
Restart your PC and see if the issue is solved.
Expert tip:
Network and smart devices security
Protection against malware, ransomware, and phishing
Banking and online payment protection
This is a subscription-based antivirus, but you can use the 30-day free trial to try it out first.
On top of that, if you need a full PC scan as soon as possible, you should know that offers a free, one-time full PC scan.
After the troubleshooter is finished, check if the Windows could not search for new updates 80072efd error is still there.
If you want to go through a dull in-depth scan of your PC, we recommend using a third-party tool specialized in Windows repair and troubleshooting.
3. Run the Network Adapter troubleshooterThe Network Adapter troubleshooter might also help some users resolve the 80072efe Windows 7 update error.
NOTE
Note: You can only delete the catroot2 folder with an admin user account.
5. Clear the SoftwareDistribution folderAfter doing that, Windows Update services will be restarted and the Windows could not search for new updates 80072efe message should be gone.
This is a quick and easy workaround, but it should help you fix the Windows 7 update error 80072efe with ease.
7. Disable third-party firewall and antivirus softwareIt’s also recommended to disable any third-party firewalls installed before trying to update Windows.
Zone Alarm, McAfee, AVG, and Panda firewalls are known to generate issues for Windows updates. So, have a look through the settings for any installed firewall to disable it.
How do I fix Windows 7 not updating?
Check your internet connection.
Make sure that the Windows Update service is running.
Run the Windows Update troubleshooter.
Disable the Firewall.
Ensure the storage space is sufficient.
Run SFC Scan and DISM command to fix corrupt or missing system files.
Users have confirmed some of the above fixes can resolve the Windows 7 Update error 80072efe.
Still experiencing issues?
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How Rollup Works In Postgresql
Introduction to PostgreSQL ROLLUP
The PostgreSQL ROLLUP is an extension of the GROUP BY clause. Generally, the PostgreSQL GROUP BY ROLLUP is used for data analytics operations. For performing data analytics related operations, so many tools or software are available in the market. PostgreSQL is not made for Data Analytics purpose; with the help of the operations like ROLLUP, we can support data analytics operations on real-time data.
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Syntax:
SELECT c1, c2, c3, aggregate_function(c4) FROM table GROUP BY ROLLUP (c1, c2, c3);
(c1, c2, c3)
(c1,c2)
(c1)
()
We can also perform a partial roll up to reduce the count of sub-totals created.
SELECT c1, c2, c3, aggregate(c4) FROM table_name GROUP BY c1, ROLLUP (c2, c3); How ROLLUP works in PostgreSQL?
We can use a single statement to generate multiple grouping sets with the help of the PostgreSQL ROLLUP option.
The PostgreSQL ROLLUP option adds extra rows in the result set, allowing us to get total and super-aggregate rows.
In order to analyze the hierarchical data like creating grand-total or sub-total, we use the PostgreSQL ROLLUP option.
Examples of ROLLUP in PostgreSQLLet’s create a table named Furniture.
Code:
CREATE table furniture ( furniture_id SERIAL PRIMARY KEY, furniture_name VARCHAR (256) NOT null, furniture_type VARCHAR (256) NOT null, furniture_price int NULL );Now, insert some data in the furniture table to execute SQL statements.
INSERT INTO furniture (furniture_name,furniture_type,furniture_price) VALUES ('Chair','Wood',2500), ('Chair','Plastic',2000), ('Table','Wood',5000), ('Table','Plastic',4000), ('Sofa','Wood',10000), ('Sofa','Plastic',8000), ('Bed','Wood',15000), ('Bed','Plastic',13000);Illustrate the result of the above statement with the help of the following snapshot and the SELECT statement.
SELECT * FROM furniture; Example #1 – ROLLUP with one columnThe following SQL statement uses the GROUP BY clause and the SUM() function to find the total furniture price from furniture_name.
Code:
SELECT furniture_name, SUM(furniture_price) FROM furniture GROUP BY furniture_name;Output:
Illustrate the result of the above statement with the help of the following snapshot.
To fetch the total furniture price of all Furniture, we can use the PostgreSQL ROLLUP to the GROUP BY clause as follows:
SELECT furniture_name, SUM(furniture_price) FROM furniture GROUP BY ROLLUP (furniture_name);Output:
Illustrate the result of the above statement with the help of the following snapshot.
You can see the NULL value in the furniture_name column, which shows the grand total super-aggregate result.
In this above example, the PostgreSQL ROLLUP option allows the statement to add an extra row showing the total furniture price.
As we have seen, the output shows a NULL value in a newly produced row, which we can make more readable using the COALESCE() function.
Code:
SELECT COALESCE(furniture_name, 'Total furniture price') AS furniture_name, SUM(furniture_price) FROM furniture GROUP BY ROLLUP (furniture_name);Output:
Illustrate the result of the above statement with the help of the following snapshot.
Example #2 – ROLLUP with multiple columnsThe following SQL statement generates the furniture result by furniture_name and furniture_type:
Code:
SELECT furniture_name, furniture_type, SUM(furniture_price) FROM furniture GROUP BY furniture_name, furniture_type;Output:
Illustrate the result of the above statement with the help of the following snapshot.
Now add the ROLLUP to the GROUP BY clause as follows:
SELECT furniture_name, furniture_type, SUM(furniture_price) FROM furniture GROUP BY ROLLUP (furniture_name , furniture_type);Output:
Illustrate the result of the above statement with the help of the following snapshot.
Explanation:
The set of furniture_type rows for a specified furniture_name, an additional summary row, generates the total furniture price. The values in the furniture_type column are set to NULL in the newly added row.
Following all rows, an additional summary row generates the total furniture price of all furniture names and furniture types. The values in the furniture_name and furniture_type columns are set to NULL in the newly added rows.
Example #3 – ROLLUP with a partial rollupWe can use it to do a partial rollup which reduces the count of sub-totals generated, as shown in the following example:
Code:
SELECT furniture_name, furniture_type, SUM(furniture_price) FROM furniture GROUP BY furniture_name, ROLLUP (furniture_type);Output:
Illustrate the result of the above statement with the help of the following snapshot.
The above example generates an aggregate summary for the furniture_type column, not the furniture_name column.
ConclusionFrom the above article, you have seen how to use it. Also, we have added some examples of PostgreSQL ROLLUP to understand it in depth.
Recommended Articles
We hope that this EDUCBA information on “PostgreSQL ROLLUP” was beneficial to you. You can view EDUCBA’s recommended articles for more information.
How To Fix Update Error 0X8007000D In Windows
Windows updates help to keep your PC clean and new by rolling out new features and fixing existing bugs and errors. But what if the Windows update itself runs into an error?
There are all sorts of Windows Update errors that you might encounter. Among all of them, the Error Code 0x8007000d is one of the most common.
This code indicates that a system file necessary for Windows updates is either corrupted or missing. This halts Windows from completing any pending updates including the driver updates.
Network issue while downloading updates
Viruses or malware
Unexpected crash during update
Accidental deletion of files
Problematic apps
Since Windows updates are significant to a smoothly functioning PC, this error can cause a lot of trouble if not solved immediately.
Fortunately, there are various methods to solve this error. So, you can go through them one by one to see if any of them work for you.
Listed below are the methods to fix error code 0x8007000d in Windows:
A troubleshooter can help to identify and solve common issues in system software and hardware.
You can run windows update troubleshooter and compatibility troubleshooter to fix error code 0x8007000d.
The troubleshooter in Windows 10 and 11 resides in a different section of the Settings. To open the troubleshooter:
From here on, the steps are the same in both versions. Now, to run the troubleshooter, follow the steps below:
The troubleshooter will now run a diagnostics of the Windows Update. It will automatically solve the issue if found, and let you know about it.
If you encounter the 0x8007000d error while trying to install drivers then running the Compatibility troubleshooter might help to solve the problem.
Upon completion, If the troubleshooter cannot find or solve the issue, move on to the next fix.
SFC, short for System File Checker, scans the Windows system to identify and fix issues and errors with the system files. So, it might be one of the most appropriate methods to fix the 0x8007000d error which is caused due to corrupted or missing system files.
To run the SFC command go through the steps mentioned below:
After the command is executed, reboot the system to check if the issue is resolved.
If the system file checker is unable to find and resolve any issue, you can try running DISM to scan the Windows disk image and solve any existing issues.
Configuring the group policy setting might help to solve the 0x8007000d error. But the setting is disabled on the Windows Home Edition. If you want then you can enable Gpedit.
To perform the action follow the steps below:
Windows Update Assistant can be of great help if you’re facing error 0x8007000d while installing updates for Windows 10 through the normal method.
The assistant will automatically search for the latest updates available for your system and check for compatibility.
To update the window via Update Assistant follow these steps:
Now restart your PC. Your system is now up to date and the error 0x8007000d should not exist anymore.
Making changes in the registry can also help to solve the error. Make sure to back up the registry beforehand and proceed with the steps below:
Now close the Registry and reboot the system
Follow the steps below to download and install Windows update packages manually:
If none of the above methods worked for you, you can try resetting the Windows Update components manually.
You need to be patient as this is a very lengthy process and requires doing everything manually.
Follow all the steps carefully. You can copy and paste the commands to avoid any mistakes.
How To Download And Install Linux (Ubuntu) On Windows Pc
Now that we know what Linux is, it is the time that to learn how we should install it on the computer and choose which Distribution we should use. Let us start by understanding what a Linux Distribution is.
In this tutorial, we will learn –
What is a Linux Distribution?Well, now as you know that Linux is open-source, free to use kernel. It is used by programmers, organizations, profit and non-profit companies around the world to create Operating systems to suit their individual requirements.
To prevent hacking attempts, many organizations keep their Linux operating systems private.
Many others make their variations of Linux available publicly so the whole world can benefit at large.
These versions/ types /kinds of Linux operating system are called Distributions.
How many distributions are out there?
There are hundreds of Linux operating systems or Distributions available these days. Many of them are designed with a specific purpose in mind. For example, to run a web server or to run on network switches like routers, modems, etc.
The latest example of one of the most popular smartphone-based Linux Distribution is Android!
Many of these Distributions are built to offer excellent personal computing.
Here, are a few popular Linux Distributions (also called Linux Distro) –
Linux Distribution Name Description
Arch This Linux Distro is popular amongst Developers. It is an independently developed system. It is designed for users who go for a do-it-yourself approach.
CentOS It is one of the most used Linux Distribution for enterprise and web servers. It is a free enterprise class Operating system and is based heavily on Red Hat enterprise Distro.
Debian Debian is a stable and popular non-commercial Linux distribution. It is widely used as a desktop Linux Distro and is user-oriented. It strictly acts within the Linux protocols.
Fedora Another Linux kernel based Distro, Fedora is supported by the Fedora project, an endeavor by Red Hat. It is popular among desktop users. Its versions are known for their short life cycle.
Gentoo It is a source based Distribution which means that you need to configure the code on your system before you can install it. It is not for Linux beginners, but it is sure fun for experienced users.
LinuxMint It is one of the most popular Desktop Distributions available out there. It launched in 2006 and is now considered to be the fourth most used Operating system in the computing world.
OpenSUSE It is an easy to use and a good alternative to MS Windows. It can be easily set up and can also run on small computers with obsolete configurations.
RedHat enterprise Another popular enterprise based Linux Distribution is Red Hat chúng tôi has evolved from Red Hat Linux which was discontinued in 2004. It is a commercial Distro and very popular among its clientele.
Slackware Slackware is one of the oldest Linux kernel based OS’s. It is another easy desktop Distribution. It aims at being a ‘Unix like’ OS with minimal changes to its kernel.
Ubuntu This is the third most popular desktop operating system after Microsoft Windows and Apple Mac OS. It is based on the Debian Linux Distribution, and it is known as its desktop environment.
The Best Linux Distribution!The term best is relative. Each Linux distribution is built for a specific purpose-built to meet the demands of its target users.
The desktop Distributions are available for free on their respective websites. You might want to try them one by one till you get to know which Distribution you like the most. Each one of them offers its own unique design applications, and security.
We will be using Ubuntu for our learning purpose as it’s easy for a beginner to understand.
Also Check:- UNIX / Linux Tutorial for Beginners: Learn Online in 7 days
How to Install LinuxLet’s look the below Linux installation guide which has various methods we can use to Download Linux(Ubuntu) and install it.
Installing Linux using USB stickThis is one of the easiest methods of installing Ubuntu or any distribution on your computer. Follow the steps to install Ubuntu from USB.
Download the .iso or the OS files on your computer from this link.
Download free software like Universal USB installer to make a bootable USB stick.
Select an Ubuntu Distribution form the dropdown to put on your USB
Select your Ubuntu iso file download in step 1.
Select the drive letter of USB to install Ubuntu and Press create button.
After everything has been installed and configured, a small window will appear Congratulations! You now have Ubuntu on a USB stick, bootable and ready to go.
Installing Linux using CD-ROMThose who like the way a CD runs should try using this method.
(image source)
Step 2) Burn the files to a CD.
Step 3) Boot your computer from the optical drive and follow the instructions as they come.
Installing Linux using Virtual MachineVirtual machine software like Oracle VM can install Linux on Windows in easy steps. Let us look at them.
Here the brief steps
PART A) Download and Install Virtual Box
Download Virtual box using this link
Depending on your processor and OS, select the appropriate package. In our case, we have selected Windows with AMD
Once the download is complete, Open setup file and follow the steps below:
The virtual box dashboard looks like this-
PART B) Download Ubuntu
Visit this link to download Ubuntu.
You can select 32/64-bit versions as per your choice.
PART C) Create a Machine in Virtual Box
The virtual hard disk is where the OS installation files and data/applications you create/install in this Ubuntu machine will reside
Step-8) Now you can see the machine name in left panel
So a Machine (PC) with 8GB Hardisk, 1GB RAM is ready.
PART D) How to Install Ubuntu
Step 2) Select the Folder Option
Step 3) Select the Ubuntu iso file
Step-5) You have an option to Run Ubuntu WITHOUT installing. In this tutorial will install Ubuntu
Step-11) Installation process starts. May take up to 30 minutes. Please wait until installation process completes.
Step-12) After finishing the installation, you will see Ubuntu Desktop.
Summary
An operating system based on the Linux kernel is called a Distribution or Distro
There are hundreds of Distributions available, some of which are designed to accomplish a sole purpose like running servers, act as network switches, etc.
Naming the best Linux Distribution is difficult as they are made for different.
Linux can be installed on your system via the below-mentioned methods:
USB stick
Live CD
Virtual Installation
How To Clean Install/Reinstall Windows 10
Clean installing Windows 10 is a great idea to reformat your computer if you no longer need your previous files or want to sell it to someone else. You can also clean install your system if you encounter serious system issues or want to boost your computer’s performance.
Doing so is not that difficult and there are only a few things you need to care about during the process. In this article, we discuss all these matters and provide you with a detailed guide to clean install Windows 10 on your PC.
There are a few things you need to keep in mind before performing a clean install of Windows 10, which include:
It’s better to disable Secure Boot and Fast Boot in your BIOS/UEFI during the process as some motherboards don’t allow you to boot using an installation media if these options are On.
You need to disconnect the internet (through Ethernet) while undergoing the setup process if you want to create a local account. If the computer has internet access, it will force you to create or use a Microsoft account.
Clean installing Windows 10 will delete all the data in all of your partitions, so make sure to backup any necessary files or folders.
Now, you can follow the step-by-step guide below to perform a clean install of Windows 10.
The first step is to create a Windows 10 installation media. You can either use a third-party app or use one of the following built-in methods to do so.
Using Media Creation ToolIf you don’t have an ISO file for Windows 10, it’s better to use the Media Creation Tool to create its installation media. Here’s how you can do so:
Using DiskpartIf you already have an ISO file for Windows 10, the easiest method to create the installation media is to use the Diskpart command line interface (CLI). Here’s what you need to do:
After creating the USB installation media, you need to configure your boot priority on BIOS/UEFI and boot using this media. Here’s what you need to do:
Now, follow the steps below to clean install Windows 10:
After the reboot, Windows will start the initial setup. Here, you can force shut down your PC by pressing the power button for a few seconds or following the steps below to avoid setting the initial preferences if you want another user to use this computer:
Press Shift + F10 to open the Command Prompt.
Enter C:WindowsSystem32shutdown -s -t 0 -f to force the shut down.
If you are setting up your PC for yourself, follow the instructions below instead:
After setting up Windows, there are a few things you need to do, such as installing Windows Updates and drivers. Here’s what you need to do:
Doing so may not install all your drivers. You need to go to the manufacturer’s website for your Processor and get to the Drivers and Support.
Then, if you use a dedicated GPU, you need to go to its official website and download the latest driver for the GPU.
Then, we recommend you optimize your PC for user experience and performance by following our guide on How to Optimize Windows.
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