Dism Error 87 Fixed (2026)

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

If the troubleshooter didn't work, you may need to manually reset the services that DISM relies on. Open . dism error 87 fixed

Select and run the Windows Update tool. Restart your PC and try DISM again. Fix 4: Reset the Windows Update Components Using a command that isn't compatible with your

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

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

Running the Command Prompt without Administrator rights.

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