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Windows Defender protect your files and personal settings, and protect password.

Create, merge, split, protect, convert, and display PDF files.

Convert, modify, protect, and optimize your PDF files.

Password protect, hide, restrict write access to your important files.

Lock your files and folders to protect them from unauthorized access.

Lock, hide, and password-protect all types of files and folders.

Password Protect Windows Programs and Encrypt Files, Folders, Drives for Free.

i-Lock allows you to protect and encrypt the files on your USB portable drive.

Batch protect PDF documents with a password.Free, easy to use and multilingual.

Unblock access and protect your privacy on your Windows devices.