Hello hardcore_gamer29
I am old.
I have grown up during the years of bad computers, and have spent a lot of time trying to fix problems like you are describing; slow computers, games crashing, strange bahviours, driver incompatibilities, and more.
I can tell you that one reason why you are not getting an answer, here, on this technology forum, is because:
1. we've all had to struggle with these problems for much longer than we want to, and
2.
This means NOTHING.
To even start being able to divine what is wrong with your PC, we would need the full hardware specs, details of what OS you have, how you are running and maintaining it, what other softwares you have, what game/app is giving you problems, a full description of the problem, and possibly some diagnostics, with DXDIAG being the most common.
Otherwise, i'm sorry, but we can't help you. It could be ANYTHING. A drop in motherboard voltages. An out of spec RAM. Logitech driver incompatibility. Registry error. Viruses.
It could be a keymap issue, it could be a frayed cable, a broken windows driver, a OS language issue,it could be so many things that nobody is going to spend a week trying to fix your problem.
Go get a different keyboard. See if the error keeps happening. Keep replacing parts until it stops happening.
The only other way that tech issues are solved today, is when they are specific to either a piece of software or a piece of hardware, so you can talk to other hundreds of people having the same issue. Otherwise, it's a needle in a haystack, for a guy on the internet.
@UsandThem this is not a PC Games thread, it shouldn't be here. *i think*