letters

Hello everyone. So last week I tried changing resolutions on my Nvidia graphics card through their app but it seems it messed up something with my windows since im getting these weird letters and the icons and letters that are supposed to be round have now square edges on them and its really...

I have 4 drives, which I spent time setting up as c/d/e/f about 8 months ago. Just now noticed that a shortcut wasnt working. When I investigated, I noticed that my drives had been renamed c/e/f/z but it wasnt me who changed them. Any idea what could have caused this? Or what's going on...

:unsure: They are on my motherboard, a Gigabyte X570 Auros Master. Do they have something to do with the power supply? I've also seen it display two 'A' letters sometimes. Link: https://www.aorus.com/X570-AORUS-MASTER-rev-10

For this build, I would like to have 60fps or more on games such as BF4, GTA 5, or even CS:GO on Medium / High / Ultra settings. I also like to record and edit gameplay. So having an SSD for Sony Vegas Pro 12, Photoshop CS6, and other big programs would help a lot (Especially the fast boot times...