Run program as Local System Account
To delete registry keys under Vista+...
This article which demonstrates the use of PSTools from SysInternals which was acquired by Microsoft in July, 2006. I launched the command line and issued the following statement and suddenly I was running under the Local System Account like magic:
psexec -i -s cmd.exe
PSTools worked great.
https://verbalprocessor.com/2007/12/05/running-a-cmd-prompt-as-local-system