Hello Lvnnia,
Thank you for reaching out to the Microsoft Community and I'll be glad to assist you today.
I am sorry that you are having trouble signing in on your Personal computer.
Your account might be disabled in the local users and group policy settings. To enable the account,
• Boot your PC in safe mode:
- On the Windows sign-in screen, press and hold the Shift key while you select Power > Restart.
- After your PC restarts to the Choose an option screen, select Troubleshoot > Advanced options >Startup Settings > Restart.
- Select F4 or 4 to boot the PC in safe mode.
- Click Start, search for Computer Management, and open it.
- Expand Local Users and Groups, click Users, right-click Administrator in the right pane, and then click Properties.
- Click to clear the Account is disabled check box, and then click OK.
Related article for your reference:
https://learn.microsoft.com/en-us/troubleshoot/...
If you are still experiencing issues, I recommend trying the solutions discussed in the thread below and see if it helps.
https://answers.microsoft.com/en-us/windows/for...
I hope this information helps. If you have any questions, please let me know and I will be happy to help you further.
Best regards,
Gunasekar N