How to Make Files Undeletable in Windows

If you have lost files on your PC over and over again and sometimes you even don't what causes the data loss. Fortunately, effective methods are available here to help you fix the file lost issues, and you can also make important files undeletable but accessible now. Then you won't lose any precious documents or files on your PC. Let's see how to make files undeletable in Windows 11/10/8/7 now.

Method 1. Deny Security Permission to Make Files Undeletable

• Right-click the file or document on your PC > choose "Properties".
• In Security, tab "Edit" to change permission > select "Add and enter Everyone".
• Press "OK" and select the group to change Full control permission to Deny.
• Press "Yes" to confirm.

Then you can try to delete the file, and you'll get a File Access Denied message. Once this message appears, you'll not be able to remove the file again. When you want to delete the file again, you can change the Deny to everyone's full control permission.

Method 2. Create Backups to Make Files Undeletable 

If you need a more directive method to make files undeletable, the best automatic backup software - EaseUS Todo Backup will allow you to create file backup and even auto backup files in Windows for you. If you have made backups, you'll never lose files even after accidental deletion, as you can directly restore them from backups. Follow to see how to automatically back up files to an external hard drive so to make a file undeletable. 

Method 3. Make a File Undeletable with File Undelete Software

With professional file undelete software, you can recover the lost files effectively even after you format or remove files from your PC. Here you may try a 100% risk-free file undelete software - EaseUS EaseUS Data Recovery Wizard, which allows you to make a file undeletable in PC or external storage devices by performing formatted recovery, recycle bin emptied data recovery, permanently deleted files recovery, lost partition recovery, OS crash recovery, virus attack recovery, and RAW partition recovery with simple clicks.

Now, download this software for free and let it help you get data back safely and timely. 

Step 1. Select a drive and scan for lost data

Start EaseUS Data Recovery Wizard and hover over the partition or storage device where the lost files were previously saved. Click "Search for Lost Data" to scan the selected location for recoverable data.

Step 2. Filter and select the files to restore

Once the scan is complete, browse the scan results and select the files (DOCX, XLSX, PDF, JPG, PNG, MP4, etc.) you want to recover. Apply the file type filter to narrow down the results, or use the search box to find files by name.

Step 3. Preview and save your recovered files

Preview the selected files to check whether they are the ones you need. Click "Recover" to restore them, then choose a safe destination different from the original drive. You can save the recovered files to another partition, an external hard drive, or a cloud service such as OneDrive or Google Drive.

(Note: The free version allows you to recover up to 2GB of data. If your lost files fall within this limit, you can restore everyday documents, photos, and videos without purchasing a license. Select a destination folder to save your recovered files.)