If you install a service pack or update while Windows runs in Safe mode, and then you restart Windows normally, you may experience intermittent file errors or registry errors. Because certain drivers and components are unavailable when Windows runs in Safe mode, the service pack or update Setup program may incorrectly calculate the components that require updating. When you install a service pack or hotfix, the Setup program determines which devices are installed in the computer and which Windows components are enabled.

Microsoft recommends that you don't install Windows service packs or hotfix updates when Windows is running in Safe mode. Microsoft has the following recommendations for the installation of service packs and hotfixes when your computer doesn't function in normal mode: Installing Service Packs and Hotfixes

You can start your Windows-based computer in Safe mode to help you diagnose problems. Typically, the installation of service packs and hotfix updates is done when Windows is running normally.

This article describes how to best install and remove service packs and hotfix updates on Windows-based computers that are running in Safe mode.Īpplies to: Windows 10 - all editions Original KB number: 818460 Summary

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