KMSAuto is one of the most well-known tools for activating Microsoft products like Windows and Office without a traditional retail key. The "Final" 1.5.5 version, often hosted on sites like Bagas31 , is a portable activator designed to handle everything from Windows 7 to Windows 11 and Office 2010 through 2021.

1. Use Windows unactivated (free and safe).
2. Buy a cheap OEM key ($15–$20).
3. Switch to free alternatives like LibreOffice.

1. Run a Full Antivirus Scan: Use Windows Defender Offline or Malwarebytes Free.
2. Uninstall Suspicious Programs: Go to Control Panel > Programs > Uninstall anything you don’t recognize installed around the same time.
3. Remove KMS Task Scheduler:

   Architecture Support:

   Both 32-bit (x86) and 64-bit (x64) systems Core Features of KMSAuto Lite 1.5.5

   Option 1: Microsoft Official Keys (Paid)