Windows 10: How can I use my laptop again?

Details:1st: when Im trying to shut down my laptop I saw there was an update so I decide to Click shutdown and update.2nd: then Im waiting for it to update because it is not done yet but suddenly the blue screen appeared out of no where indicates Inaccessible_boot_device. So It restart by it self several times.3rd: after that I got stuck in this trouble shooting.I use methods like restarting but always back at the trouble shooting phase. I tried reseting but even I choose keep my files or remove all personal files it says there was an error / problem with it.4th: I tried Start Up Repair still

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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
thanks!

 

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