List of security program cleanup and uninstall tools
The following list provides links to the instructions and cleanup tools that are available from many security program manufacturers: Avast Uninstall Utility: http://www.avast.com/uninstall-utility. AVG Remover Tool: http://www.avg.com/us-en/utilities. Avira RegistryCleaner: http://www.avira.com/en/downloads#tools.
Uninstall or remove apps and programs in Windows
Press and hold (or right-click) on the program you want to remove and select Uninstall or Uninstall / Change. Then follow the directions on the screen. Need more help? If you can't find an app or program, try the tips in See all your apps in Windows 10 and Program is not listed in add/remove programs after installation.
Use the System File Checker tool to repair missing or corrupted system ...
To do this, follow these steps: Open an elevated command prompt. To do this, do the following as your appropriate: If you are running Windows 10, Windows 8.1 or Windows 8, first run the inbox Deployment Image Servicing and Management (DISM) tool prior to running the System File Checker.
Remove malware from your Windows PC - Microsoft Support
Here's how to use it in Windows 10 to scan your PC. Important: Before you use Windows Defender Offline, make sure to save any open files and close apps and programs. Open your Windows Security settings. Select Virus & threat protection > Scan options. Select Windows Defender Offline scan, and then select Scan now.
Applies To:
OneDrive (home or personal), OneDrive for Windows
Manage app permissions for your camera in Windows
Select Start > Settings > Privacy & security > Camera, then make sure Camera access is turned on. This setting lets any user on the device choose if they want apps to be able to access the camera. Note: If you can't change the Camera access setting, you'll need an administrator on the device to turn it on for you.
How to start a scan for viruses or malware in Microsoft Defender
Select Device details. Select Manage in Windows Security. Select Quick scan. Tips: If you want a deeper scan, instead of selecting Quick scan in step 3, select Scan options and choose the type of scan you want. For the most complete scan, run Microsoft Defender Offline. For more about that see Help protect my PC with Microsoft Defender Offline.
Applies To:
Microsoft Defender on Android, Microsoft Defender on Mac, Microsoft Defender on Windows
Microsoft .NET Framework Repair Tool is available
Introduction. The Microsoft .NET Framework Repair Tool detects frequently occurring issues that affect Microsoft .NET Framework setup or updates. The tool tries to resolve those issues by applying known fixes or by repairing corrupted installations of the supported .NET Framework versions.
Getting started with anti-malware in Microsoft Defender
Microsoft Defender's real-time anti-malware protection runs whenever your device is on, keeping an eye out for malicious activity. Microsoft Defender will also run quick scans of your device on a daily basis, in case anything manages to elude the real-time protection.
Applies To:
Microsoft Defender on Android, Microsoft Defender on Mac, Microsoft Defender on Windows
Fix problems that block programs from being installed or removed ...
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 you see the File Download box when you start downloading, select Run or Open.
Use the System File Checker tool to repair missing or corrupted system ...
At the command prompt, type the following command, and then press ENTER: sfc /scannow. The sfc /scannow command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir% \System32\dllcache. The %WinDir% placeholder represents the Windows operating system folder.