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Dism Error 87 Portable 〈RECOMMENDED · Summary〉

To avoid parsing confusion, use a hashtable in PowerShell:

The Deployment Image Servicing and Management (DISM) tool is a command-line utility used to service and manage Windows images, including those used for deployment, installation, and recovery. However, like any other tool, DISM can encounter errors, and one of the most common issues users face is Error 87. This essay will discuss the causes of DISM Error 87, its solutions, and how to prevent it from occurring.

Not all options work together. Example: /LimitAccess requires /Source to be a WSUS or Windows Update path, not a WIM file.

If syntax is 100% correct but error 87 persists:

The classic "restorehealth" command is notorious for this. The correct syntax is: DISM /Online /Cleanup-Image /RestoreHealth

The causes of DISM Error 87 are varied, but some common reasons include:

Here is the breakdown of why this error haunts your command prompt and how to silence it.