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.

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

To do this, follow the steps below: Go to http://www.microsoft.com/security/scanner/en-us/default.aspx and click the Download Now button. Follow the on screen instructions to download and install the Microsoft Safety Scanner. When prompted, save the file to your desktop. When starting your computer, repeatedly press the F8 key.

When you run an .exe file on a Windows based computer, the file may start a different program. Resolve issues where you cannot start .EXE files on Windows 7 and Windows Vista.

There are two ways to get apps from Microsoft Store: On the Start menu, select the Microsoft Store tile. On the taskbar, select the Microsoft Store icon.

Malware is a term that is used for malicious software that is designed to do damage or unwanted actions to a computer system. Examples of malware include the following: Select a heading below for more information. What is a computer virus?

When you install, uninstall, or update a program on a Windows-based computer, you may receive one of the following error messages. The Windows Installer Service could not be accessed. Windows Installer Service couldn't be started. Could not start the Windows Installer service on Local Computer. Error 5: Access is denied.

System File Checker is a utility in Windows that checks for problems with files on your computer. To run it, follow these steps: Make sure you've installed the latest updates for Windows, and then restart your machine. To find out more, read Update Windows.

Below is a list of common Windows file name extensions and formats. Learn what file name extensions are, which extensions are common in Windows, and how to view them in File Explorer.

Learn how to optimize system performance by managing startup applications in Windows.