Last month, we covered a federal criminal case in which Microsoft's Global Device Identifier (GDID) helped the FBI catch an alleged hacker. First, the script looks for server-issued GDID keys in the registry, where they remain cached, and purges them all. In fact, Windscribe tried it on a virtual machine, but the GDID keys are silently re-minted in the background upon a reboot or whenever Windows contacts Microsoft servers again. This one-two punch completes the process, and the existing GDID keys are not only wiped, but the possibility of new ones being created is put to bed as well. The reason deGDID is even needed in the first place is that Windows has no native toggle to turn off GDID.