When you try to install, update or start a program or a file, you receive the following error message: Error: Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item.

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. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.

To repair the corrupted files manually, view details of the System File Checker process to find the corrupted file, and then manually replace the corrupted file with a known good copy of the file. Open an elevated command prompt, as described previously.

Provides links to the uninstall tools and directions for many security programs.

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

Alternatively, if installation doesn't start automatically, browse the disc to find the program setup file, usually called Setup.exe or Install.exe. Open the file to start installation.

Drivers updated through Device Manager can be done either automatically or manually. If needed, drivers can also be reinstalled through Device Manager. To update or reinstall a driver through Device Manager in Windows, select the desired task from the following list:

Learn how to download files from the web, change your default download location, and find files you've downloaded on your PC using Internet Explorer.

Describes an update that fixes issues in Visual C++ 2013. Includes descriptions of the issues that are fixed by the update.

Get support for Windows and learn about installation, updates, privacy, security and more.