One way to lock a Windows computer from your keyboard is by pressing Ctrl + Alt + Del and then selecting the "Lock" option.
Windows has many keyboard shortcuts available to navigate and work across the operating system faster and more efficiently.
Find out how you can fix the "Rainbow Six Siege crashed" error on Windows PCs with the troubleshooting methods covered in this KeenGamer article. Does your Rainbow Six Siege X throw up the "Oh not, it ...