Code 52 on Windows 7 x64 SP1

Yes, yet another instance of problems with driver signing on Win 7 64-bit.
I'm trying to install a UNO R3 board, which I've used before on the same machine, though I don't remember if I managed to find a permanent fix back then (the old drivers were unsigned anyway) since it was a couple of years ago.
I know how to manually install and remove drivers. The latest (1.2.2.0) is obviously installed but will not run because of Microsoft's idiotic policy.

Tried disabling driver signature enforcement both through bcdedit and the Group Policy Editor to no avail.

Only solution seems to disable enforcement at boot-up, using the advanced boot options (press F8 etc.). But this only works until the next reboot, which is a pain in the ass for what nowadays should be a mature product.
Surely I can't be the only one facing this issue. Is there even a solution or do I have to pin a sticky note to my monitor reminding me to restart and edit boot options whenever I need to use Arduino?

Did you ever solve this problem? I've been using the same workaround.