Windows won't let you delete, move, or rename a file if a program is using it. Frustratingly, it also won't tell you which program is using the file so that you can solve the problem.

2] Delete the xhunter1.sys file The xunter1.sys is a third-party driver file associated with software named XIGNCODE3 System Guardian or XIGNCODE by Wellbia.com.

Wondering what really happens when you delete a file on Windows? Learn how deletion works, where files go, and if you can recover them.

Meeting DoD standards for securely deleting files in Windows 11 requires the use of a special application. Fortunately, Microsoft provides one for free in Sysinternals.