I'm tired of finding a solution

Hello ,
Sry if i dont respect how to post an thread ,but i have one question :
Its been like 2 years my computer keept bsod first years i dont do research and now i do but i will not do anymore , when i search an answer for my Bsod another problem appear its Windows update Error and my pc cant get update like 5 months now , So my question is : If i buy Windows 8.1 my computer can revive ? No problem ? No BSOD ?
I have contacted Windows live desk help , he say me to get better help i need to pay Windows Premium Desk help or something like that, but who gonna pay ... i also tried EVERY method possible to resolve , i run memtest for 3 days no errors , after test BSOD memory management whaat ?
SO i would know if i get Windows 8.1 , did get any errors of these ?
Sorry again if i dont respect thread post and sorry for English Im french .

For BSOD:
Follow Blue Screen of Death (BSOD) Posting Instructions
Make sure the zip file includes the dmp file/s. If not, configure a small memory dump - Dump Files - Configure Windows to Create on BSOD and wait/trigger another BSOD. then re-run the "Dm log collector" and attach the new report.

For Windows Update issue:
Windows Update Posting Instructions

Thnks gokay for Response , Sanirim turk'sun Windows update issue olmuyor dedim gibi herseyi denedim A'dan Z'de kadar ben tek sorum yeni bir Windows alirsam Hersey yok olcak mi error olarak ?
Yok sa evet BSOD post yaparim . Sagol

Evet, selam. Forum kurali geregi Ingilizce gerekiyor gerci. Windows 8 yerine neden Windows 7'yi yeniden kurmayi dusunmedin? Daha kolay olmaz mi? Burada cok guzel tutorial'lar var. Biz de yardimci oluruz. Windows Update sorunu da buyuk ihtimal cozulur.
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Why don't you consider clean re-installing Windows 7 instead of buying Windows 8? Wouldn't it be easier? We have nice tutorials here that could help and we will help too. Windows Update will most likely be solved as well.

I am confused at the moment. I am talking to a French in Turkish on an English forum?

Follow these steps to get and keep a perfect Clean Reinstall Windows 7. The tutorial has been used by 1.5 million consumers without a single complaint. They have the best installs of Win7 in the world, which will stay that way as long as you stick with only the tools and methods given.