Dear Arghya ,
Thank you for reaching out to the Microsoft Q&A Community. I understand that you are having trouble accessing your Microsoft account after resetting your PC. Please follow these steps to resolve the issue:
1. Use the Microsoft Account Recovery Form
Go to Account Recovery Form and submit the form again with as much detail as possible:
- Previous passwords (even old ones).
- Exact subject lines of recent emails you sent.
- Names of frequent contacts.
- Billing information if you have made purchases. Submit the form from a device and location where you previously signed in for better recognition.
2. Try the Account Unlock Option
- Visit Reset Password Page
- Select "Forgot password?"
- If the "Enter password" window is still open select Forgotten your password?
- If not, select Reset password below, enter the username name for the account you're trying to reset, and select Next.
3. Check for Recovery Code
If you previously generated a recovery code, you can use it to regain access. If not, once your account is restored, create one at Create new Microsoft Account for future emergencies.
4. Contact Microsoft Support Directly
If all recovery fails:
- Visit this website: Contact - Microsoft Support
- Type your problems in the search box there. ( For example, Contact support.)
- Now click on Get Help and select Contact Support below.
- Go to the Products & Services tab and choose the Outlook category
- On the Category tab, choose based on your actual problem, such as cannot sign in.
- Go to Confirm.
- Choose to chat with a support representative or request a call back.
Note: The support contact team only works at certain times, so if the last window shows that it's unavailable, try opening it again the next day. If you prefer phone support, you can leave a phone number. This way, they can call you and help you.
5. Additional Tips
- Retry the recovery form up to two times per day with further details.
- Once access is restored, update your security info (phone, backup email) immediately.
Please kindly refer to these articles for further guidance :
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Warm regards