Protect your files from accidental deletion or editing by turning on write-protection. Perform this with every files you own and then you don't have to worry about the file being deleted or edited by someone other than you. This isn't permanent; you can always go back and change the setting at any time.
This article provides a quick and easy ways to deny delete a file in Windows 11,8,7,vista,xp.
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The following steps will tell us how to use GiliSoft File Lock to deny delete a file and how to unlock them when needed.
The easiest way to deny delete one file is right-click the file and click 'GiliSoft File Lock'-->'Deny write',
then the selected file will can not be modified by others.
Just as this picture:
The easiest way to remove file write protection is right-click the protected file and click 'Enable write'.