How to Fix Microsoft 365 Identity Verification and Windows PIN Errors
Question details
The user needs to bypass a Windows Security prompt asking for an unknown PIN during Microsoft 365 activation, which is linked to an old organization-managed account.
- Product
- Microsoft 365
- Device & OS
- Windows
- Scenario
- Activating a new Microsoft 365 subscription after leaving a company or changing an organizational account.
- Observed behavior
- Windows Security continually prompts for an unknown PIN to verify identity, preventing Microsoft 365 from activating or opening properly.
Ensure you have administrator access to your Windows PC and have backed up important personal files to an external drive or cloud service before making changes to user profiles.
Create a New Windows User Profile and Transfer Files
Bypass the organization-managed PIN prompt by creating a fresh Windows account profile, then safely copy your old files over to the new account.
When an old work or school account enforces strict security policies on your device, it can trigger unknown PIN requests during Office activation. Creating a clean Windows user profile isolates you from these old policies, allowing Microsoft 365 to run normally.
Go to Windows Settings, select Accounts, then click Family & other users. Add a new user to the PC and ensure they are granted Administrator privileges.
Sign out of your current Windows session and log into the newly created account. Open Microsoft 365 to verify that the activation proceeds without the PIN prompt.
Open the Control Panel, navigate to System and Security, select System, and then click on Advanced system settings on the left sidebar.
Under the User Profiles section, click Settings. Select your old organization-managed profile from the list and choose the Copy To option.
Enter or browse to the destination profile (usually located under C:\Users\NewUsername). Click 'Permitted to use', add your new account so it has access rights, and click OK to transfer your files.
Switch to WPS Office for a Hassle-Free Experience
Avoid complex Windows identity verifications and activation errors. WPS Office is a free, lightweight, and highly compatible alternative to Microsoft Office that lets you start working immediately without subscription hurdles.
- 1. Download the installer: Visit the official WPS Office website and download the free version for Windows.
- 2. Install WPS Office: Run the setup file and follow the simple on-screen instructions to complete the installation in minutes.
- 3. Open your documents: Launch WPS Office to immediately open, edit, and save your existing Microsoft Office files without any activation prompts.
Frequently Asked Questions
Why is Microsoft 365 asking for a PIN I never created?
This usually happens when your device is still linked to an old work or school account. Organizations often deploy security policies that mandate a specific PIN. When you try to activate Office, Windows Security triggers this outdated policy.
Can I remove the old work account without creating a new Windows profile?
Yes, you can try removing the old account directly. Go to Windows Settings > Accounts > Access work or school, select the old organization account, and click Disconnect. Restart your computer and try opening Microsoft 365 again.
Will I lose my files when switching Windows user profiles?
No, your personal files remain safe on the hard drive. By using the 'Copy To' function in the Advanced System Settings or by manually copying files from the C:\Users folder, you can seamlessly migrate your documents to the new profile.
