Problems with the speed of execution on my T420

I'm not very tech savvy, so bear with me please if I have forgotten something or doing something wrong.

Just to clarify, my laptop is a Lenovo ThinkPad T420i, Type 4178. It is about 2 years old.

I have Windows 7 64 bit.

My laptop takes about 2-5 minutes to turn on, sometimes it turn on at all. The screen freezes every 15 seconds, but I'm still able to move my cursor. He accused some too. For example, type 'how to download google chrome' will take me sometimes a whole minute, because the only parts of the sentence will be displayed on the screen at once. My keyboard responds very well. The problem is not with wireless internet, because even if the wireless is off the laptop computer is still incredibly slow. It is impossible to watch videos because the screen freezes so.

I had this problem with the speed of my laptop for about 2 months now. I had finished it wiping back to factory settings, downloaded every scanner malware and virus known to man (none of them found no problems with it) and updated all my drivers.

I don't really know how to do much on my laptop other than the use of the internet. I would really appriciate instructions step by step.

Thank you.

Hello. I did it all at once (up to 8 GB, SSD of RAM HARD disk and reinstall Windows), that's why I can't answer you, how did each of them, but after all, my absolutely BRILLIANT T420 representation!
Chip graphic is now the weak link, and, unfortunately, it cannot be replaced.

Tags: ThinkPad Notebooks

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