In http://psref.lenovo.com/Product/Lenovo_Laptops/ideapad_520S_14 I see it comes with Windows 10 Home 64 bit. Why did you install that yourself? Are you sure it was new?
Anyway, after 5 days it should still be in warranty, so better return it.
I have issue with new 520S-14IKB. I bought it 5 days ago.
Installed Windows 10 and updated to latest version. Installed all drivers from Lenovo support site.
Laptop freezes randomly few times a day. I can't get patternt, because it sometimes crashes while watch youtube, sometimes when swithcing windows, sometimes just by using some text editor.
It just stucks, I can't click anywhere, cant switch windows with alt+tab, can't open task manager. I can move mouse and that is it.
No any message, no "not responding" message.
When I put it on sleep by pressing power button, and turn it on again it runs normally, as nothing happened.
It is becoming really annoying because I can't find out what causes the problem.
I tried everything I could find on web, also installing intel graphic driver from Intel site manually, turning off Link state power management for PCI express which I found on internet as solutions for windows 10 crashing.
I am getting really desperate about this and thinking about returning laptop to my seller back.
Can anybody help please?
Thanks in advance.