strange error happening here - I'm on an HP z820 (win7 SP1) that was running MC8.2 perfectly, and now when I try update (I've tired 8.5.3 - 8.6.3 - 8.6.4 ) the installer appears to reach the end of the process, and then moves backwards and uninstalls everything. It doesn't give me a specific error (like when a file name/path is too long/deep for windows). Any ideas?
I dont want to repair windows as I've got a few 3nrd party plugins activated that I'd rather not have to redo (BCC & Baselight to be specific).