How to perform a clean boot in Windows - Microsoft Support
To return your computer to a normal startup, follow the steps in the section, Reset the computer to start normally after clean boot troubleshooting. If the installation or uninstallation still fails, that means this issue is not caused by interference from a service or an app.
Startup Repair - Microsoft Support
Startup Repair is a Windows recovery tool that can fix certain system problems that might prevent Windows from starting. It scans your computer for the problem and then tries to fix it so your computer can start correctly.
Configure Startup Applications in Windows - Microsoft Support
Learn how to optimize system performance by managing startup applications in Windows.
Troubleshooting Windows unexpected restarts and stop code errors
Windows 11 might shut down or restart unexpectedly when a serious problem occurs, causing you to briefly see an error message, such as “Your device ran into a problem and needs to restart.” Windows 11 will then restart automatically.
Windows troubleshooters - Microsoft Support
Get Help has troubleshooters, or diagnostic tests, that can check your system configuration for anything that might be causing issues using your devices. View troubleshooter results. After you run any troubleshooter, Get Help provides details on any findings and suggestions for possible remedies.
Unexplained Windows or software behavior may be caused by deceptive ...
To resolve this problem, try to identify and remove deceptive software from your computer. To do this, use one or all the following methods. Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.
Running troubleshooters in Get Help - 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 Start to run that troubleshooter. After you run any troubleshooter, Get Help provides details on any findings and suggestions for possible remedies.
Windows recovery environment - Microsoft Support
Learn about Windows RE, how to access it, and the different tools it offers.
Microsoft Support
Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.
Tips to improve PC performance in Windows - Microsoft Support
To help diagnose and resolve many of these issues, you can use the Microsoft PC Manager app, which provides tools to clean up storage, manage startup apps, and optimize system performance. Download PC Manager app. This article lists several solutions that may help improve your PC’s performance.