German forum has *184* pages of comment in about problems. sheesh.
I might try a re-install somewhere else. The instant unexpected kernel mode trap crash is something I've never seen on this computer before, since installing win 10 back when win 10 first started, it's too much of a co-incidence that it just happened along the moment I installed the client.
Since it makes that crash even if I just try to open the directory that the client was installed in, there's no chance of trying any fix like copying in someone else's swf file.