Some icons in My Computer, in Windows Explorer, on the desktop, or on the Quick Launch Bar change randomly. Troubleshoots and fixes common issues with file and folder operations in Windows.

Did this resolve the issue? If Forza Horizon 4 or Forza Horizon 5 won’t launch, or if it crashes on your Windows device, we have a number of troubleshooting steps to try.

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.

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.

Your web browser suddenly closes or stops responding. It takes a much longer time to start or to resume your computer. Components of Windows or other programs no longer work. Cause This issue may occur when deceptive software, such as spyware that is known as "grayware," is installed on your computer.

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.

Learn about Windows RE, how to access it, and the different tools it offers.

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.

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more. Note: Use these steps for Windows programs.

Your Windows device may run slowly for several reasons, such as limited storage space, too many startup apps running in the background, outdated software, or hardware that no longer meets modern performance needs.