By Achilles Hill | Last Updated
An undeletable file/folder can not only prevent itself from being removed by accident or without authorization, but also keep you from helpless data loss and troublesome data recovery. So how to make your important data undeletable? In this article, we will walk you through the useful tricks to make a file/folder undeletable in Windows 10.
Step 1: Right-click the file/folder that you want to make it undeletable and select Properties in the context menu.
Step 2: Switch to Security section and click Edit.
Step 3: Click Add in the Permission window.
Step 4: Enter Everyone as the object name in the pop-out window and then click OK.
Step 5: Choose Everyone under the Group or user names option and then deny full control. At last, hit OK to make the change take effect.
Now, your files/folders are undeletable and also inaccessible. If you want to undo the permission change, you can repeat the steps above and remember to allow full control for everyone in step 5.
Trick 1. BitLocker encrypt the partition where stores your important data. Although this way doesn't make your files/folders undeletable directly, it's effective to stop your data from unauthorized access as well as deletion. You can try it when your Windows OS supports BitLocker encryption.
Trick 2. Backup your important data frequently. If the reason to make your files/folders undeletable is to prevent the data loss caused by unexpected deletion, then this way is worth trying. Besides, it can also save you from the data loss caused by broken disk, crash system, virus attack, etc.
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