First problem I noticed was the touchpad became unresponsive. Didn't think much about it since I have a mouse. Then the 1 key began repeating, making it impossible to open my start menu or look for a solution online as all the seach fields would become filled with 1s. On top of that the up arrow became stuck. I removed the keys but they appeared to be in perfect condition.
I was afraid to do a reboot in case I couldn't log back in if the 1 key continued to repeat. So I deleted the keyboard drives which seemed to solve the problem. Now everything works fine including the touchpad. I don't know what caused this exactly. I scanned for malware but nothing came up.
I wanted to post this in case someone else had a similar experience.