10

first apologies if I’m sending you down a path you’ve already gone, if you have obviously ignore all this :wink:

First of all have you checked the event viewer? perhaps you could post the information from it here and it might help the really tech-savvy in this forum to pinpoint your problem

I have done a bit of digging and “aswTdi” is one of the Avast processes. As other people on similar systems have not had this issue with this file, it makes me wonder if it’s corrupt and/or a virus, that is overwriting the correct aswTdi every time you try to install?

it would be almost ironic wouldn’t it?

I’m not sure exactly how you would go about removing this file if it is corrupted and continually overwriting the valid version - perhaps keep doing system restore to a certain point, then using Avast to re-upgrade. Perhaps once you’ve uninstalled Avast, make sure delete that file is really gone

also perhaps use something like malwarebytes as you do each system restore as a complimentary malware scan