The DISM or System Update Readiness tool may help you to fix some Windows corruption errors. For example, an update might not install if a system file is damaged.
Windows updates and service packs may fail to install if there are corruption errors. Fix Windows Update errors by using the DISM or System Update Readiness toolĪpplies to: Windows 10, version 1809 and later versions, Windows 8.1, Windows Server 2012 R2, Windows 7, Windows Server 2008 R2 Original KB number: 947821 Symptom