![]() If you have logged on to Windows 10/8/7/Vista, you can use Ctrl+Alt+Del to start Windows Security. You can refer to this post to enable it: Enable Press Ctrl+Alt+Del Secure Logon On Windows 7 or Vista. However, this feature is disabled by default. This is called a secure attention protection/sequence. If you are still using these Windows operating systems like Windows XP, Windows Vista, and Windows 7, you can use the Ctrl+Alt+Del command to log in to a Windows user account. That is why you need to reboot your computer properly. ![]() ![]() Although the page cache is flushed and the volumes are safely unmounted, it is quite possible that the running programs are not closed cleanly and your works/documents are not saved properly.
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