.~BT File

The ~bt file extension is associated with the Microsoft Windows 8 and Windows 10 operating systems for desktop, tablets and smart phones developed by Microsoft.

The $Windows.~BT is directory that stores data for update purposes of Windows 8 and Windows 10.

The $Windows.~BT directory can be safely removed by these easy steps:

Press Windows key + R

Type: %windir%\system32\cleanmgr.exe

Hit Enter on your keyboard

How to open:

Double click on $Windows.~BT directory to view its content.

How to convert:

Probably cannot be converted to anything else.