Dism Error 87 Fixed Jun 2026

Type the following command and hit Enter: dism.exe /image:C:\ /cleanup-image /revertpendingactions Restart your computer immediately.

If the Windows Modules Installer service is stopped, DISM cannot perform its cleanup tasks. Press Win + R , type services.msc , and press . Scroll down and double-click Windows Modules Installer . Set the Startup type to Automatic . Click Start , then click OK . Step 3: Run Windows Update dism error 87 fixed

Missing spaces before forward slashes ( / ) is the #1 cause. Type the following command and hit Enter: dism

DISM /?

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DISM is extremely sensitive to spaces. For example, dism /online/cleanup-image /restorehealth will fail, while dism /online /cleanup-image /restorehealth will succeed.

Sometimes PowerShell handles these commands better than the traditional Command Prompt.