Repair-WindowsImage -Online -RestoreHealth -Source "E:\sources\install.wim:1" -LimitAccess
This is not a direct fix for Error 87, but it prevents secondary errors that look like Error 87. When you run DISM without admin rights, Windows sometimes returns misleading parameter errors. dism error 87 fixed
Repair via in-place upgrade (if image servicing keeps failing): dism error 87 fixed