For me it was Firefox crash. After Windows 10 upgrade some things seems to be working not so great
. Maybe I'll just switch back to W7 because not so fond of this one either, it's better than Windows 8.1 I'll give it that but still meh. Clean install would work better I bet but still...
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I would use ROMs only offline as I buy all my games I play online and really like, are there any other benefits to CIA ROMs than no headers and modifications with updates and DLCs?