The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track. Run the System File Checker tool (SFC.exe)

The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

How to obtain this update. The following file is available for download from the Microsoft Download Center: Download the Microsoft .NET Framework 4 package now. Virus-free claim. 0x643" error code occurs when you install this update. To resolve the .NET Framework update installation error, see other methods in the following Knowledge Base article:

To download and update a driver yourself. Need more help? Learn about various ways to update driver software for your hardware devices, including Windows Update and manual installation.

Method 1: Windows 7 and 8.1 - Use the Hardware and Devices troubleshooter. Method 2: Check BIOS settings and chipset drivers. Method 3: Update or reinstall the driver. Method 4: Remove and reinstall IDE/ATAPI drivers. Method 5: Fix corrupted registry entries. Method 6: Create a registry subkey.

You can have Windows automatically download recommended drivers and detailed information for your hardware and devices. This is a good way to make sure all your hardware and devices work properly.

If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try to restore it from a previous version. Previous versions are copies of files and folders that Windows automatically saves as part of a restore point.

To find downloads on your PC: Under Quick access, select Downloads. Note: If necessary, go to the View tab, select Navigation pane, and ensure that Navigation pane is checked. You can also find your Downloads folder under This PC. Learn how to find where your browser is saving downloads.