So i bought r9 270 2gb.
Mined zcash for 7 days + and it was working perfectly.
4 days ago i turned on game (without miner ofc). And i got like grey screen with white bars from bottom to top. And keyboard lagged. I restarted pc and got blackscreen with keyboard and mouse loosing power.
I read nearly everything online about these problems tried everything. In safe mode i disabled the mobo output without r9 270 connected. Connected back installed drivers back and it worked for like few hours and the same happend (grey screen with bars).
I tested everything and gpu works without drivers, after installing drivers on win 10 it doesnt work, tried multiple drivers. Now im on win 8.1 and the same thing happens. Please help i have enough of trying everything. Ask questions i will be here full time and checking.
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Start from scratch and tell Windows to NOT automatically install the drivers. When you install Windows, make it a clean install without keeping anything, but you can allow it to make the windows.old file so you can get things like your wallet out.
I think you are going with Windows 10? That is easier to configure I believe, but basically tell it to ask before everything update. Windows 10 still tries for the standard 3 AM update session, but if you are using the PC or anything is running then it may skip that update and hold it or skip a restart and never even tell you.