Last week, I upgraded to W10, without being notified. It went ok but my network adapter did not work in W10. So, after a few days of trying to fix the problem without success. I decided to downgrade back to W8.1 64. I needed to be back online to pay my bills. I also thought that if I wait a little longer to reinstall W10 maybe my network adapter problem might be resolved. Now back in W8.1, everything is working fine including my network adapter driver. However, I did notice that i still have the little white Microsoft logo in my task bar. Does this mean that I could be able to reinstall W10 using the windows update, if notified? If so, how does it affect reinstalling W10 using the windows update? If I already have upgraded and downgraded back to W8.1 64. I know that somewhere in my pc I still have W10 so it can be reinstalled. my thinking is that maybe if I reinstall W10 using the windows update. I won't have the problems with my network adapter like I did the first time in W10.