How to fix problems with my pc after restoring?

I have a lenovo think pad and after I restored my pc to factory settings the speakers do not seem do be as loud and also my mouse pad only clicks on something if i click the very bottom left corner. Before I restored I could click pretty much anywhere on the left side and it would click. Anyone know anything that would help?

How to run 2 independent monitors from one HDMI out port on my Lenovo C540?

I'm currently using my one HDMI out port for a second monitor, and this third monitor is just sitting on my desk gathering dust because I'm finding out that HDMI splitters can only service one device at once. Is there any technology that exists that will extend my HDMI outward capabilities to this third monitor without just duplicating the image of another one? Seems like I've tried, read, and watched everything. Any input is appreciated.

Why does my pc keep disconnecting from Wi-Fi?

So i have a lenovo y500 with dual gt650m
it runs really well except that i have problems with my Wi-Fi… I connect to an airport extreme that goes via a linksys adsl2+ modem to the wall… I don't think it is a problem with my Wi-Fi card since it runs well on my schools Wi-Fi and when i use hotspot from my phone. Could anyone help me with this. I read somewhere that disabling ipv6 would get rid of this problem. My antivirus doesn't find any viruses or malware so i don't think it is because of that reason.

Part of my PC touch screen not working well?

There's a small region in the top left area of the screen which when I click around using touch, it's not very good, it works fine with the mouse

I have a Lenovo pc, windows 8.1

I looked online for solutions such as cleaning the screen, I calibrated and everything, it's still not working, also it's a new pc, I bought it this year

Need to find network adapter driver for my Lenovo?

I recently replaced my hard drive and reinstalled windows, however it didn't install the network adapter driver because it couldn't detect the hardware. I have searched through a lot of driver installers however they all need Internet access to complete the scan, which I obviously can't complete. I need the specific driver for my Lenovo y580 idea pad.

Can the lenovo y580 output 144hz with HDMI to the Asus vg248qe?

I have an Asus vg248qe monitor and a lenovo y580 which has HDMI 1.4a but no dvi or display port ports. The Asus vg248qe monitor can output 144hz but I have heard that HDMI 1.4a can't output a refresh rate higher than 60hz when displaying a resolution of 1080p. Is this true? If it is can you connect a HDMI 1.4a to dvi-d converter to achieve a refresh rate higher than 60hz? If so can you give me the name of this converter? Thanks.

Added (1). I meant adapter not converter. Sorry