In this case, it’s crucial that you regain admin rights.
In this post fromMiniTool Website, we will walk you through how to reset administrator rights for you.
Fix 1: Regain Administrative Rights
Modify the corresponding registries can help to regain the admin rights.

To do so:
Step 1.
Go toUpdate & Security>Recovery>Restart nowunderAdvanced Startup.
In theAdvanced startupscreen, click onTroubleshoot>Advanced options>Command Prompt.

In the command window, typeregeditand hitEnter.
Step 5. press theHKEY_LOCAL_MACHINEbranch > click onFilein the top left corner > selectLoad Hive.
Navigate to:system root drive>Windows>System32>config.

Locate theSAMfile > selectOpen> name itSAM.REG> click onOKto load in regedit with the same name.
Heres how to do it:
Step 1.
Typecontrol panelin the search bar and hitEnter.
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Click onUser Accounts>Manage another account>Add a new user in PC options.
SelectAdd someone else to this PCunderOther users> enter all the details as asked > hitFinish.
LaunchCommand Promptand execute the command below to boot into Safe Mode.
shutdown /r /o
Step 5.
Step 6. start your rig.
To do so:
Step 1.
PressWin+Sto evoke the search bar.
Typecreate a restore pointand hitEnter.
UnderSystem Protection, click onSystem Restore.
Click onNext> select a desired restore point > hitNext.
After confirming all the details, click onFinishto start the process.
Windows 10 restore points missing or gone, it means that you cant restore computer to previous state.
restore points missing issue will be solved.
Final Words
How to regain admin rights and how to fix NET HELPMSG 2221 on Windows 10/11?
After reading this post, you might be clear now.
When your data is lost unexpectedly, you’ve got the option to recover it with ease.