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#1
USB memory stick random behaviour
I've found windows 10 is a bit random with USB memory stick. Previously under win7, some memory sticks work on the USB3 ports, some didn't, generally most worked on the USB2. Win7 was consistent with the various memory stick, same stick worked or didn't work in the USB ports.
Win 10 seems to randomly either see it as normal, not see it at all, or (my favourite) appear for 2 seconds, then disappear for 2 seconds, then appear for 2 seconds then disappear. It also behaves like this on any of the ports.
It's a good quality Gigabyte motherboard, Z77-D3H (i think), can't see the motherboard being a problem if it worked ok before.