How to Pick a Lock

Opening a number lock “with just paper” is a viral trick often shown online, but in reality it doesn’t work on any properly built or secure lock. What these videos usually demonstrate is how very cheap or poorly made locks can be manipulated because their internal parts aren’t aligned well. When thin paper is slid inside, it sometimes pushes the loose pins or wheels just enough to make the lock slip open—but this only exposes how weak the lock already is, not a real method for cracking secure on

How to Lock Cells for Editing and Protect Formulas - Excel Campus

How to lock cells in Excel and protect formulas [easy guide]

Enable Num Lock on startup or reboot in Windows 11/10