Using backslashes ( \ ) instead of forward slashes ( / ). Mispelling DISM: Accidental typos like DSIM . 2. Run Command Prompt as Administrator
DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\sources\install.wim:1 /LimitAccess dism error 87 fixed
You see: Error: 87 – The source option is missing a parameter. Using backslashes ( \ ) instead of forward slashes ( / )
In short: