So I have an older PC that I want to update and use as a LAN PC, however the CMOS battery is dead, it boots up just fine I just have to go through the BIOS and change the time. It's not my primary PC so it's not an everyday hassle for me, the reason why I haven't just changed the battery is that it's a Maximus VI Formula and you can only get to the battery by removing the armor, which means you have to disassemble the freaking machine, and for something I use so infrequently, it seems a little too bothersome. Before I start using it as a LAN PC I want to upgrade it from Win 7 to Win 10, so I was wondering if you guys think there's going to be an issue with the upgrade with a dead CMOS battery during the frequent restarts during install?