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Error 87 is arguably the most frustrating error you will encounter when running the Deployment Imaging and Servicing Management (DISM) tool on Windows 7 .
If you have the option, upgrade to Windows 10/11 for repair operations. Microsoft has effectively abandoned DISM servicing for Windows 7 as of January 2023. Have a different error code? Let me know in the comments below.
Specifically, the /RestoreHealth switch with the /Online flag behaves entirely differently on Windows 7. If you copy-paste a Windows 10 command into a Windows 7 CMD window, you will trigger Error 87 immediately. Fix 1: Use the Correct Syntax for Windows 7 You cannot use /RestoreHealth directly on a live Windows 7 OS using the built-in DISM. Instead, you must target an offline image.
Unlike error 0x800f081f (missing source files) or error 2 (file not found), Error 87 simply states: "The parameter is incorrect."
Microsoft backported some DISM features to Windows 7 via an update (KB2966583), but the version shipped with Windows 7 natively does support the commands you see in modern Windows 10 guides.
DISM /Online /Cleanup-Image /RestoreHealth You need to point DISM to a mounted install.wim file from your Windows 7 DVD or ISO.
Error 87 is arguably the most frustrating error you will encounter when running the Deployment Imaging and Servicing Management (DISM) tool on Windows 7 .
If you have the option, upgrade to Windows 10/11 for repair operations. Microsoft has effectively abandoned DISM servicing for Windows 7 as of January 2023. Have a different error code? Let me know in the comments below. how to fix error 87 dism windows 7
Specifically, the /RestoreHealth switch with the /Online flag behaves entirely differently on Windows 7. If you copy-paste a Windows 10 command into a Windows 7 CMD window, you will trigger Error 87 immediately. Fix 1: Use the Correct Syntax for Windows 7 You cannot use /RestoreHealth directly on a live Windows 7 OS using the built-in DISM. Instead, you must target an offline image. Error 87 is arguably the most frustrating error
Unlike error 0x800f081f (missing source files) or error 2 (file not found), Error 87 simply states: "The parameter is incorrect." Have a different error code
Microsoft backported some DISM features to Windows 7 via an update (KB2966583), but the version shipped with Windows 7 natively does support the commands you see in modern Windows 10 guides.
DISM /Online /Cleanup-Image /RestoreHealth You need to point DISM to a mounted install.wim file from your Windows 7 DVD or ISO.