This is a famous text file containing a massive list of common passwords often used in security auditing tools. To help you better, is this a: Personal account lockout (e.g., Discord/Google)?

Use reputable security software to scan your computer.

If you are locked out of an app or website and looking for a saved file:

Log in to your admin console, go to Settings , and click "Download" to save the accountinfo.txt file. 4. Brute Force Password Lists ( rockyou.txt )

If you are seeing files on your desktop like README.txt , HOW_TO_DECRYPT.txt , or UNLOCK_MY_FILES.txt , your computer has been infected with ransomware.

(e.g., "All my files have .txt appended to them")? Technical/Admin task (e.g., downloading user data)? Let me know so I can provide the exact steps you need. Find your BitLocker recovery key - Microsoft Support

If you are working on security testing or auditing your own account security, you may encounter rockyou.txt .