How you do the update may factor into that? I did the update through the Store once and had issues. I ended up with intermittent WIFI and wireless keyboard and mouse issues. I've seen other similar reports from other forum members also. No such issues when doing a clean install though. I didn't like Metro in 8.0 but now its more multi monitor friendly in 8.1 so that's what I'm running. If your current Windows 8 install is an factory OEM install I'd recommend creating your recovery media, if you haven't already. The factory recovery utility may not work correctly after the update.
Computer Type PC/Desktop System Manufacturer/Model Number Asus OS Windows 10 Education 64 Bit CPU AMD Phenom II X4 980 Black Edition Deneb 3.7GHz Motherboard ASUS M4N68T-M V2 µATX Motherboard Memory 8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory Graphics Card NVIDIA Geforce GT640 2 Gig DDR3 PCIe Sound Card VIA VT1708s High Definition Audio 8-channel Onboard Monitor(s) Displays 22" LG E2242 1080p and 2 19" I-INC AG191D Screen Resolution 1280x1024 - 1920x1080 - 1280x1024
Keyboard Logitech Wireless K350 Wave Mouse Logitech M570 Trackball and T650 TouchPad PSU Thermaltake TR 620 Case Power Up Black ATX Mid-Tower Case Cooling Stock heatsink fan Hard Drives Crucial MX100 256 GB SSD and 500 GB WD Blue SATA Internet Speed 80 Mbps Down 30 Mbps Up Browser Internet Explorer 11 Antivirus Windows Defender Other Info HP DVD1040e Lightscribe - External USB2