Dism: Error 87 Fixed |best|

Go to > Troubleshoot (or System > Troubleshoot in Windows 11).

A glitchy Windows Update service can sometimes block DISM from connecting to its source files. Fix 1: Check Your Syntax (The Most Common Solution)

90% of Error 87 cases are caused by missing spaces. DISM is very picky about how commands are formatted. Every forward slash must have a space it. The Wrong Way: dism/online/cleanup-image/restorehealth The Right Way: dism /online /cleanup-image /restorehealth dism error 87 fixed

By following these steps, you should be able to bypass Error 87 and successfully repair your Windows system image.

DISM requires elevated permissions to modify system files. If you run it in a standard terminal, it will fail. Click the menu and type cmd . Right-click Command Prompt and select Run as Administrator . Try running your DISM command again. Fix 3: Run the Windows Update Troubleshooter Go to > Troubleshoot (or System > Troubleshoot

Use dism /online /cleanup-image /scanhealth (Note: Windows 7 does not support the automatic repair feature of RestoreHealth). Summary Table Likely Cause Missing Spaces Add a space before every / No Admin Rights Right-click CMD > Run as Administrator Pending Updates Run Windows Update Troubleshooter Wrong OS Version Ensure you aren't using Win 10 commands on Win 7

Running the Command Prompt without Administrator rights. DISM is very picky about how commands are formatted

Using a command that isn't compatible with your version of Windows.