You mean "System Restore" back to when it still worked. And that doesn't work. That's a problem indeed.
If no obvious cause, I'd try a reset or a refresh: http://www.howtogeek.com/132428/everything-you-need-to-know-about-refreshing-and-resetting-your-windows-8-pc/
But it might be a lot of work to get you system back to what it was yesterday. That's why some people make an image backup once in a while to go back to.
hello my friends
I have a big problem in my pc
I dont know how it happen to me i cant connect to internet explorer but i can connect to chrome
also i cant connect to other software like shareit IDM bluestacks
pls help me
yesterday my pc was good without any problem but now i have this problem
my laptop is hp pavilion x360
help me pls
i try restoration the laptop but the problem no fix