win10 成功删除 $WINDOWS.~BT 文件夹
takeown /F C:$Windows.~BT* /R /A
icacls C:$Windows.~BT*.* /T /grant administrators:F
rmdir /S /Q C:$Windows.~BT
takeown /F C:$Windows.~BT* /R /A
icacls C:$Windows.~BT*.* /T /grant administrators:F
rmdir /S /Q C:$Windows.~BT