install both
Have all of the following installed.
.NET Core 3.1 Desktop Runtime x86 Link
.NET Core 3.1 Desktop Runtime x64 Link
.NET Core Current Runtime x86 Link
.NET Core Current Runtime x64 Link
.NET Framework (get latest) Link
(Both x86 and x64 of the .Net Core MUST be installed)
Reboot PC when done.
I can't believe anyone is still recommending this as a solution. This is more than likely not the person's first ever cheat happens trainer. Obviously they have been using these trainers and would therefore already have NET CORE. More than likely, everyone has it without even knowing. I was given this stupid idea as a solution to this exact problem. After trying to download it, it stated I already had it, which is what I thought, because I would have needed it for the 100's of previous trainers I was using with no problems.
I've downloaded the items from both links but it doesn't seem to have changed anything, Underrail still does not open.
I feel you bro. Just won't work. Hundreds of other Cheat Happens trainers work fine. This one and a few others just refuse to work. I've done everything with this trainer to allow it to work and it just won't. All my CH trainer are run as admin. I scanned it and it didn't have any issues. I allowed it specifically through defender and anti virus, even though there was no concerns over any "viruses". Oh, and I have the most recent version of NET CORE!