Windows 10: My laptop is going craz all of sudden

Hi everyone.I'm in need of help/advice. I have medion erazer P6679, intel core i5 7th gen 8GB RAM, NVIDIA GEFORCE GTX, Windows 10. I turned my laptop on today after a week or so, with the laptop being placed on a desk without any fall or damage all of sudden my left shift key isn't working. When capslock is off my keyboard types capital letters, when it's on it types small letters instead of . it gives me >. My num keyboard is stopps working all of sudden, my chrome is freezing and I can't close or minimise it unless I use task manager. I can't write @ at all because my left shift isn't wor

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Best laptop under $800??

Well the last one I suggested seems to be the best for 650$

EDIT: to facilitate your search...

Laptop GFX benchmark list

Laptop CPU Benchmark list

 

Laptop overclocking adventures

hey guys I'm trying to get clockgen to work on my laptop but can't get any of the plls to work, can you please post like exactly what steps I need to take to test each pll to see if it works? my specs are listed to the left
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Laptop with broken screen How much?

I would like suggestions and look in local stores. I dont wanna buy a laptop from someone online. Sorry. But could be a good idea if you asked him about the performance on older games. Gonna make a list ofall laptops people suggest me.

Remove the screen for space purpose here its small desk and if the screen is opened it will hide my 22 inches lcd