Lost Windows password from old laptop

That prompt is asking for the current password of the local Windows account, not the Microsoft account password. If that local account was created without a password, leave the password field blank and continue.

If the local account does have a password and it is no longer known, the supported options are:

1. Try resetting it from the sign-in screen
   • Sign out or lock the PC.
   • On the Windows sign-in screen, select the arrow next to the password field.
   • Select OK > Reset password.
   • Answer the security questions for that local account.
2. If already signed in with that local account and Windows offers it
   • Open Settings > Accounts > Sign-in options.
   • Select Password > Change.
   • If available, select I forgot my password and follow the prompts.
3. If another administrator account already exists on that PC
   • Open Computer Management.
   • Go to Local Users and Groups > Users.
   • Right-click the affected account and select Set Password...
   • Set a new password, then use that password when Windows asks for the current device password.
4. If no password reset option works and there is no other administrator account
   • The documented recovery path is to reset the Windows device.
   • Microsoft support cannot retrieve or bypass a forgotten password.

For future protection on a local account, a password reset disk can be created from Control Panel > search for create password reset. This works only for local accounts.

• How do I reset my Windows password that I need to switch from my local account to my Microsoft account? - Microsoft Q&A
• Change or reset your local account password in Windows | Microsoft Support
• Change or reset your Microsoft account password in Windows | Microsoft Support
• Change or reset your Microsoft account password in Windows | Microsoft Support
• Create a password reset disk for a local account in Windows | Microsoft Support