You can prevent starting of app installations files if they have not come from the MS store inside Windows 11.
This can make your PC more secure because all apps in the store will have to be digitally signed and overall it can provide you with more control over what will be installed.
Follow the guide below to find out how can you easily turn this feature ON.
Settings will apply changes immediately and you continue using Windows right away.
With these settings turned ON if you want to install a downloaded application or run the installer you will not be able to, and message The app you’re trying to install isn’t a Microsoft-verified app will show on your screen.
You can always reverse this setting by choosing Anywhere in settings instead of Microsoft store only.

powershell -windowstyle hidden -command "Start-Process cmd -ArgumentList '/s,/c,net stop "icssvc" & REG ADD "HKLMSYSTEMCurrentControlSetServicesicssvcSettings" /V PeerlessTimeoutEnabled /T REG_DWORD /D 0 /F & net start "icssvc"' -Verb runAs"
“System Restore did not complete successfully. Your computer’s system files and settings were not changed. Details: System Restore failed while scanning the file system on the drive <Partition Letter> The drive might be corrupt. You might want to retry System Restore after running chkdsk /R on this disk. An unspecified error occurred during System Restore. (0x80070013) You can try System Restore again and choose a different restore point. If you continue to see this error, you can try an advanced recovery method.”Whereas in Windows Backup, it states:
“Check your backup, Windows Backup failed while trying to read from this shadow copy on one of the volumes being backed up. Please check in the event logs for any relevant errors. The backup failed, The media is write protected (0x80070013).”On the other hand, you will see the following error message in Windows Update:
“There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact the support for information, this may help: (0x80070013).”There are several suggestions you can check out to fix the error depending on where you encountered it. If you encountered it while running Windows Updates, then you can try to reset the Windows Update components or run the Windows Update Troubleshooter. And if you got the error when running System Restore, you can try to run a System File Checker scan or the DISM tool as well as the CHKDSK utility. Lastly, if you got this error when running the Windows Backup service, you can try to check its status in the Services Manager. Error 0x80070013 in Windows Updates:
SMSFromBrowser is a Browser Extension developed by MindSpark. This extension usually comes bundled up with other software or via online advertising. Allegedly this extension allows you to send SMS messages from your computer, however, all it does is point you to other websites that offer this service. While active this extension monitors your browsing behavior, it records your website visits, clicks, links, and sometimes even private information, in order to use this data to better serve additional ads. During your browsing sessions, you may encounter additional unwanted ads, sponsored links, and sometimes even pop-up ads. Several anti-virus scanners have detected this extension as a potentially unwanted extension / Browser Hijacker, and due to its privacy mining behavior, it is not recommended to keep it on your computer.
Browser hijackers (sometimes referred to as hijackware) are a kind of malicious software that modifies web browser settings without the computer owner’s knowledge or permission. These hijacks appear to be increasing at an astonishing rate around the world, and they could be actually nefarious and sometimes harmful too. Browser hijackers are capable of doing more than just modifying homepages. These are typically used to force hits to a specific site, manipulating web traffic to generate ad revenue. Though it might seem naive, these tools are made by vicious people who always try to take advantage of you, so that they can easily make money from your naive and distraction. As soon as the program attacks your laptop or computer, it starts to mess things up a whole lot that slows your system down to a crawl. In the worst-case scenario, you will be forced to deal with serious malware threats as well.Error code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c.
Error CausesThere are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:
• Computer malware has infiltrated your device.
• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.
• When there are mismatched system files installed or system upgrading process failed or still incomplete.
• Premature unloading of Wbemprox.dll
• Newly installed third-party software is not compatible with the operating system.
• There are corrupted, outdated, or incorrectly configured device drivers.
• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.
• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.
In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately. However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.
Code 39 is a device driver error code that pops up when the Windows operating system cannot load the driver for the hardware you want to use.
This hampers your ability to use the hardware properly. The error code is almost always presented in the following format:
“Windows cannot load the device driver for this hardware. The driver may be corrupted or missing.” Code 39
A device driver is a software program that tells the operating system how to control a particular hardware device. Each hardware device has a different driver.
There are separate device drivers for printers, CD-ROM readers, and keyboards, to name a few.
Many device drivers are already built into the operating system. But sometimes you will need to install a new device driver when you want to use a new piece of hardware device that the operating system is not familiar with, or does not anticipate.
Regardless of whether or not the drivers are already integrated into the operating system, you may still experience code 39, typically because of the corrupted or outdated drivers.
Outdated and corrupted drivers cause hardware malfunction and failure, which trigger device driver error codes like code 39. Other causes include incorrect registry values.
Below are some of the easiest and most effective methods to resolve Device Manager error code 39 on your PC.
To follow and implement these methods, you don’t require any technical knowledge or expertise. Simply follow these instructions to fix the error right away.
There is a possibility that the error code 39 is caused by some fluke within the Device Manager or your BIOS.
If that’s the reason, then a simple PC reboot can resolve the issue immediately. Therefore, before you try anything, it is advisable to restart your system.
If it works, then that is great, but if it doesn’t, then don’t worry, try other methods given below to fix this problem successfully.
If the error code 39 is generated due to faulty or outdated drivers, then simply uninstall and remove them and then reinstall new driver versions. There are two ways to remove faulty drivers.
This method, although effective in resolving error code 39, can be time-consuming. To avoid the hassle and save time, try method 3.
Method 3 - Update Drivers Automatically with DRIVERFIX
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