enable developer mode on tablet and turn on USB debugging
connect tablet to pc
right click on recovery.bat and click run as administrator
the tablet will restart
download an app or widget that restarts the device to recovery or use exposed module for that.
ported from vi8, looks laggy but works fine. can backup all partitions including win10 but for that a device with an ntfs partition is required because the win partition is to large for fat32.
if you are already rooted you may just flash the recovery.img file from the archive with the Flashify app.