Windows troubleshooters - Microsoft Support
Get Help has troubleshooters you can run for many common scenarios. These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Run to start that troubleshooter.
Fix low disk space errors quickly in Windows - Microsoft Support
Press Windows key + R to open the Run dialog box. Type wsreset.exe and select OK to clear the Microsoft Store cache. Restart your PC: Select Start > Power > Restart . Start > Settings > System >Storage. Turn on Storage Sense to automatically free up space by removing unnecessary files.
Use the System File Checker tool to repair missing or corrupted system ...
Use the System File Checker tool to repair missing or corrupted system files. When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether.
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
Fix problems that block programs from being installed or removed
First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.
Configure Startup Applications in Windows - Microsoft Support
Learn how to optimize system performance by managing startup applications in Windows.
Uninstall or remove apps and programs in Windows - Microsoft Support
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.
Free up drive space in Windows - Microsoft Support
Here are some ways to free up space so you can keep your PC up to date and running smoothly. These suggestions are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn't.
Protection History - Microsoft Support
Microsoft Defender SmartScreen has the ability to block potentially unwanted apps before they're installed and if that happens you'll see a blocked event in the Protection History. If you believe the block was a mistake and you want to allow the file to run you can select Actions, then Allow.
Use a troubleshooter with Windows 10 - Microsoft Support
Instead of fix-it tools, Windows 10 uses troubleshooters to help you solve problems. To run a troubleshooter, use the following steps: Select Start > Settings > Update & Security > Troubleshoot > Additional troubleshooters, and then select Additional troubleshooters.