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 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.

Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.

Configure startup applications from Task Manager. Configure startup applications from File Explorer. Fix the error: We couldn’t find this app. If you see the massage We couldn’t find this app as an app title in Settings, the app could be on a removable drive, a network drive, or the path to the app might not exist.

This issue can be resolved and the PC Repair virus removed by running the Microsoft Safety Scanner. 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.

This update includes a fix for an incorrect device driver (“Microsoft – WPD – 2/22/2016 12:00:00 AM - 5.2.5326.4762”) that was released by a third-party on March 8, 2017 that affected a small group of users with USB connected phones or other media devices that rely on Media Transfer Protocol (MTP).

Select the Start button, type Programs in the search box, and then select Add or remove programs. Under Apps & features find and select Microsoft OneDrive. Notes: Microsoft OneDrive is a backup and sync app, which is available for download from the OneDrive website.

Windows 7 and 8.1: Run a troubleshooter. Update the device driver. Error codes in Device Manager. If the above steps didn't help you resolve your problem or were not available, locate your error code in the following table, and follow the recommended resolutions for that error code.

Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows.

How to perform a clean boot in Windows. Notes: If your issue prevents you from booting into Windows, you won't be able to follow the steps in this article. After the device tries to restart a few times, you should get Windows Recovery Options, which you can use to try to resolve the issue.