From:
席康杰
 [mailto:xikangjie@xxxxxx] 
Sent: 18 April 2017 12:12
To: Paul Durrant <Paul.Durrant@xxxxxxxxxx>
Subject: 答复:
 [win-pv-devel] Windows 10 Pro Activation stopped after installing 8.2 drivers
 
 
 
Hi Paul,
You said the released
 drivers are signed, but when I install win-pv-8.2 on windows7 x64, get warning “Windows requires a digitally signed driver”, below is the screenshot:

               
When I reboot the system
 , the system failed to start, “Windows can not verify the digital signature of this file”, below is the screenshot.

 
What should I do?
 
Thanks
-Kangjie
 
 
Hi David,
 
  I suspect it is turning on testsigning that is stopping Windows Update. You don’t need
 to turn testsigning on for released drivers though. They are signed so should just be able install them (clicking through the trust dialog on the way). It’s only development builds that will need testsigning enabled.
 
Cheers,
 
    Paul
 
 
 
This weekend I set up Windows 10 Pro 64 Bits  as a VM (+ VGA
 Passthrough = GTX 680 harcoded to GRID K2).
 
I used Xen 4.3.4 on a Linux Kernel 3.19.
 
The VM is able to boot and works fine.
 
I installed all PV Drivers for 8.2.0. I added 
 
bcdedit /set testsigning on
 
before installing all drivers as Administrator (as recommended
 from INSTALL.cmd file ) .
 
Unfortunately now activating Windows 10 Pro does not work anymore.
 I am able to work on the VM but no more Windows Update :(
 
Did I do something wrong?
 
FYI my  VM was backed up through LVM system before adding all
 Xen PV Drivers.