In this post, you’ll learn about the Windows System Error ERROR_IS_SUBSTED (0x87)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 135 ERROR_IS_SUBSTED (0x87)]
Why do you receive the System Error Error Code 135 ERROR_IS_SUBSTED (0x87)] in Windows?
An attempt was made to use a JOIN or SUBST command on a drive that has already been substituted.