My account's been locked

If your account is locked and you see a message indicating that an administrator needs to resolve the issue, you will need to contact your Active Directory administrator or the support team responsible for managing your account. They will be able to unlock your account and assist you with the sign-in process on your old laptop.

If you are part of an organization, check if there are other admins who can help you unlock your account. If not, you may need to submit a support request to get assistance from Microsoft support.

References:

• What should I do if I can't sign in?
• What to do if you're locked out

Hello Jason,

Thank you for posting question on Microsoft Windows Forum.

Based on the issue description. There are two scenarios to consider for troubleshooting the account locked out issue.

1.If It Is a Work Laptop.

• If you use this laptop for work, or if you signed into the new laptop using a work email address, Microsoft's security protocols (MDM) likely triggered a lock. When you signed into the new device, the organization's security system may have detected "suspicious activity" (two devices active at once) or realized the old laptop is no longer "compliant" with their security policies. The only way to fix this issue is to contact your company's IT Department.

2.If It Is Your Personal Laptop.

• If this is strictly a personal device and you are the owner, the "Administrator" is you, but Windows has locked the account for security reasons (often due to repeated failed login attempts or a sync issue between the old and new laptop). You can try the following suggestions to fix the issue.
• On the lock screen, look for the Power icon in the bottom right corner. Hold down the SHIFT key on your keyboard. While holding Shift, click Restart. Do not let go of the Shift key until you see a blue screen menu called "Choose an option." Select Troubleshoot > Advanced options > Startup Settings > Restart. Once it restarts, press 4 or F4 to start in Safe Mode. If you can log in while in Safe Mode: Go to Settings > Accounts > Access work or school. If you see your work/school email listed there, click it and select Disconnect. Restart the computer normally.
• If your old laptop is trying to sync with the new one via the internet and getting confused, cutting the connection might help. Look for the Wi-Fi icon in the bottom right of the lock screen. Click it and disconnect from your Wi-Fi (or turn on Airplane Mode). If you use an ethernet cable, unplug it. Restart the computer. Try signing in again with your last known password.

Hope the above information is helpful! If it is. Free feel to hit "Accepted" for benefitting others in community having the same issue too.