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How do you lock a file so it Cannot be deleted?

Author

John Kim

Published Apr 09, 2026

Method 1 – Change security permission
  1. Right-click the file you want to secure, and open Properties.
  2. Go to the Security tab, and choose Advanced.
  3. Now, click on disable inheritance.
  4. Click on a user you want to deny access to your file, and go to Edit.
  5. From the Type: dropdown menu, select Deny, and click OK.

Simply so, how do you lock a folder so it Cannot be deleted?

Here's exactly what you need to do:

  1. Right-click the file you want to secure, and open Properties.
  2. Go to the Security tab, and choose Advanced.
  3. Now, click on disable inheritance.
  4. Click on a user you want to deny access to your file, and go to Edit.
  5. From the Type: dropdown menu, select Deny, and click OK.

Likewise, how do you stop my computer from deleting files by itself? How to Prevent Windows 10 from Automatically Deleting Files

  1. Open the "Settings" app. Click the "System" category and then click "Storage".
  2. Move the "Storage Sense" switch to the off position to turn off the feature. When the feature is turned off, it will not automatically delete files to free up disk space.

Correspondingly, how do I stop Windows 10 from deleting files?

Step 1: Open the Settings app. Click the System category and then click Storage. Step 2: Move the Storage Sense switch to the off position to turn off the feature. When the feature is turned off, it will not automatically delete files to free up disk space.

How do I make a file Undeletable?

Method 1. Deny Security Permission to Make Files Undeletable

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

Related Question Answers

Can you lock a file from being deleted?

Hiding Your Files To Prevent Them From Being Deleted

Right-click on your file and select Properties. You'll be in the General tab by default. At the bottom of your screen, you'll find an option saying Hidden. Tick-mark the option and click on OK.

How do I disable right click Delete?

You can either delete the folder to remove the option or simply disable the folder, which is better in case you want to bring it back later on. You can disable an application by clicking on the folder in the left pane and then right-clicking on the key value in the right pane and choosing “Modify“.

Why does Windows 10 keep deleting files?

Some people report that their desktop files are “deleted” after installing the update. Their taskbars and Start menus are also reset to the default settings. Files appear to be deleted because Windows 10 is signing some people into a different user profile after they install the update.

How do I disable delete in shared folder?

  1. Select Advanced and go to the Permissions tab.
  2. Check for the Name (or Principal ) value that you used in command, for DENY in the Type field.
  3. The Permissions (or Access ) field should show Delete and the Apply to (or Applies to ) will show this folder only.

Why does Windows 10 delete my files?

It seems that if you've installed an incompatible or faulty Windows 10 update, it will remove or delete your files on PC. SO the most straight-forward way is to uninstall the faulty updates that remove files on your Windows 10 computer.

How do I restrict users from deleting files and folders?

Prevent users from deleting files and folders
  1. In Google Drive, open an AODocs library where you are defined as an library administrator.
  2. Press the gear button and select Security center.
  3. In the Security center pop-up, select the Security tab.
  4. Select the checkbox Only administrators can delete files and folders. Notes:
  5. Press Done to save.

Does Windows 10 delete files?

Programs and files will be removed: If you are running XP or Vista, then upgrading your computer to Windows 10 will remove all of your programs, settings and files. To prevent that, make sure to do a complete backup of your system before the installation.

Why my laptop is automatically deleting files?

Clean Malware and Virus with Antivirus Software. Left-click causes files deletion may result from virus infection. On this occasion, scan malware and viruses using your existing antivirus software. Or, use CMD to remove a computer virus if you have skills.

What causes files to disappear?

What Causes Files to Get Disappeared. Files can go missing from your hard drive, external hard drive or any other storage media if they get corrupted, infected with malware, hidden or automatically moved by a program without user's interference.

Why is my Recycle Bin always empty?

The recycle bin will empty itself automatically once you set a maximum size. Once the total size of your deleted items hits the limit, the recycle bin will automatically toss the oldest files. Here's how you do it: Right-click the recycle bin, then select “Properties.”

Are you sure you want to permanently delete this file Windows 10?

Option 1 – Local Setting

Right-click on “Recycle Bin” and choose “Properties“. Uncheck the box for “Display delete confirmation dialog“. Select “OK” and now when you delete a file, the file will go directly to the Recycle Bin without the message appearing.

How do I stop Windows 10 from deleting emails?

Steps to Stop Windows Live Mail From Deleting Emails Automatically
  1. First of all change the default settings.
  2. Go to File >> Options >> then Mail.
  3. Select Advanced Option >> Maintenance.
  4. Choose Empty Items from the Deleted Items Folder.
  5. Hit on Exit button to complete and save the process.

How do I stop Windows from deleting downloads?

How do I prevent Windows downloads from being deleted?
  1. Open Settings.
  2. Click on System.
  3. Click on Storage.
  4. Click on the option to Change how the memory is automatically freed.
  5. Under Temporary Files, use the Delete files from the Downloads drop-down menu and select the Never option.

How do I stop my Recycle Bin from automatically deleting?

Part 2. Stop Recycle Bin Automatically Deletion Windows 10
  1. Open Settings app. Navigate to System > Storage.
  2. Click Change how we free up space link. Uncheck the second option: delete files that have been in the recycle bin for over 30 days. Then, your Recycle Bin will stop deleting files automatically.

How do I stop Windows Update from deleting files?

Scroll down to Exclusions and click Add or remove exclusions. 4. Click + plus icon to add an exclusion and select File, Folder, File Type or Process, then specify the exact files, folders or even file types that you don't want to get them deleted or removed by Windows Defender.

How do I make a deleted folder?

How to Create Undeletable Folder in Windows 10 Using CMD?
  1. Open the Command Prompt as administrator.
  2. At the Command Prompt, enter the drive name like D: or E: where you wish to create the undeletable folder and press Enter.
  3. Next, type “md con” command to create a folder with a reserved name “con” and press Enter.

How do you make a file Undeletable on a USB?

Yes you can make a flash drive readonly by using diskpart no mather if it is usb 2.0 or 3.0 or FAT or NTFS formated.
  1. Open an elevated command prompt, type diskpart and press ENTER.
  2. Type: list disk.

How do I make a file Undeletable in Linux?

To make a file undeletable by any system user, including root, you need to make it unmodifiable using using the chattr command. This command changes file attributes on a Linux file system.

How do you make a game Undeletable?

If you use Go Launcher, you can use the "screen lock" function. This will make apps undeletable from the app drawer and your widgets locked as well.

How do I prevent files from being deleted on a USB?

Right-click on the USB drive and select the "Properties" option from the drop-down menu. Click on the "Security" tab and select the "Edit" option. Find the section "Write Attributes" and place a check mark next to the "Read-Only" option.

Can you prevent an Excel file from being deleted?

If you want to prevent all worksheets in an Excel file from being deleted, you can simply use the Protect Workbook feature under the Review tab of Excel. This feature can protect the structure and windows of an Excel workbook from being changed.

How do you make Windows immutable?

How can I make a file trully immutable (non-deletable and read-only)?
  1. Use a program to keep the file open. Drawback: One can kill the process an then the file closes.
  2. Use a program to set the security attributes. Drawback: The file can be deleted. Also, the attributes can be changed back.

How do I protect a folder?

How to password protect a folder in Windows
  1. Open Windows Explorer and find the folder you want to password protect, and then right-click on it.
  2. Select "Properties."
  3. Click "Advanced."
  4. At the bottom of the Advanced Attributes menu that appears, check the box labeled "Encrypt contents to secure data."
  5. Click "OK."

How do I make a file Undeletable on a Mac?

For macOS, select the file in Finder, type ?-I or right click and select “Get Info”. Then just check “Locked”. From the command line you can us the chflags command “chflags uchg filename” to lock and “chflags nouchg filename” to unlock. These are extensions to normal UNIX permissions.