GiliSoft File Lock Pro

Prevent Unwanted Changes to Selected Windows Files

Apply focused protection to selected files, folders, drives, external storage, and shared-folder workflows.

GiliSoft File Lock Pro illustration for locking, hiding, protecting, and encrypting files and folders

How to Prevent Files from Being Deleted on Windows

By GiliSoft • Updated October 9, 2026

To prevent files from being deleted on Windows, first identify who or what may remove them. Windows permissions can limit a user account, Controlled Folder Access can block untrusted apps, and File Lock Pro can add selected-file controls. Keep an independent backup because prevention settings do not guarantee recovery.

Quick answer

For a specific file or folder, use the narrowest control that matches the risk. Check NTFS permissions when limiting a Windows account, use Controlled Folder Access against untrusted applications, and test File Lock Pro Protecting File for selected content. A read-only flag is not a complete access policy, and only a separate tested backup helps recover deleted data.

Choose the Right Protection Layer

NeedBest-fit layerImportant check
Reduce casual visibilityHide selected contentTest Explorer, recent items, and shortcuts
Discourage accidental editsRead-only attributeLightweight edit guard, not a complete access policy; test actual delete behavior
Limit deletion by a Windows userNTFS permissionsReview Delete rights for the account and test on a copy
Block changes by untrusted appsControlled Folder AccessDesigned for app access and ransomware defense, not as a manual user-delete rule
Recover after deletionIndependent backup or file historyRestores data but does not prevent deletion
Require controlled accessLock a file, folder, or supported driveTest from a standard user context
Stop editing or deletionProtecting File rulesTest save, rename, move, overwrite, and delete
Protect content during deliveryEncrypt selected filesDecrypt and compare a test copy
Protect an entire lost or stolen driveFull-volume encryptionVerify recovery key and boot recovery
Recovery first: verify the password and recovery path with noncritical data before protecting irreplaceable files.

Prepare Before You Lock or Encrypt Anything

  1. Keep a restorable original.

    Make a separate backup and open a sample from that backup.

  2. Choose a limited test target.

    Use a copy that represents the real files without risking active work.

  3. List legitimate access.

    Record the users and applications that must still read or update the content.

  4. Set recovery information.

    Use a unique password and confirm the recovery email or documented recovery process.

Block unwanted changes to important files with GiliSoft File Lock Pro

The interface below is the actual GiliSoft product workspace used for this task. Open the same area in the installed trial and follow the sequence with a noncritical sample.

GiliSoft File Lock Pro protecting files against changes
The Protecting File workspace applies read, write, delete, rename, or visibility controls to selected content.
  1. Open Protecting File.

    Choose Local Disk > Protecting File in GiliSoft File Lock Pro.

  2. Add a test file or folder.

    Start with noncritical content that behaves like the real project or archive folder.

  3. Select the required restrictions.

    Apply only the controls needed for reading, writing, deleting, renaming, moving, or visibility.

  4. Test normal applications.

    Open, save, rename, move, and delete the test item from the applications people actually use.

  5. Maintain an independent backup.

    Access controls reduce accidental changes but do not replace versioned or offline backups.

Verify Access and Recovery

  1. Close the protection program.

    Do not judge the result only while the management window is open.

  2. Test the normal user path.

    Use File Explorer and the applications that normally open or update the content.

  3. Check every restricted operation.

    Test read, write, copy, move, rename, overwrite, and delete behavior as relevant.

  4. Restore access deliberately.

    Unlock, unhide, or decrypt the sample and compare it with the original.

  5. Record the final rule.

    Document the protected path, owner, purpose, date, and recovery location.

What This Workflow Does Not Replace

File Lock Pro adds focused controls for selected Windows content. It does not replace a tested backup, malware defense, Windows account and NTFS permissions, centralized endpoint management, or full-volume encryption for a lost device. Microsoft documents these as separate layers: file permissions control requested access, file encryption protects selected data, Controlled Folder Access limits untrusted application changes, and BitLocker-style encryption addresses whole volumes.

For business use, test protection with a standard user account and the actual software workflow before deployment. Do not assume a successful rule blocks every alternate path or administrative recovery method.

Prevent Files from Being Deleted FAQ

Is prevent files from being deleted the same as full-disk encryption?

Usually not. File and folder controls protect selected content, while full-disk encryption addresses an entire volume and physical device-loss scenarios.

Should I keep a backup before applying protection?

Yes. Keep a tested backup that is independent of the protected path, and do not store the only recovery information beside the protected data.

Can GiliSoft File Lock Pro protect every business workflow?

No single desktop utility replaces Windows account permissions, endpoint management, backups, audit policy, malware protection, and staff procedures. Use GiliSoft File Lock Pro for the focused task described on this page.

How should I test the result?

Use a noncritical sample first, close the product, sign in as the type of user who will encounter the rule, and test open, edit, copy, move, rename, and delete behavior as relevant.

What happens if the password is lost?

Recovery depends on the configured product and account options. Set and verify recovery information before protecting important data.

Try GiliSoft File Lock Pro

Test the exact file, folder, drive, or shared-folder workflow with noncritical content before protecting important data.