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Lock your system with a password

Lock & Restrict pdf for edit content by encrypting pdf data with 128 bit AES

Lock computer to prevent unwanted access, keep people off your computer.

Lock your files,folders and drives very fast at windows kernel level 100%secure.

Lock down your browser and prevent unauthorized access to the Internet。

Lock your screen with a password.

Lock, hide, and password-protect your all private files and folders.

Lock, hide, and password-protect your all private files and folders.

Lock your mouse and PC.

File Undelete and file recovery software for FAT & NTFS file systems.