Wired Connection, but Unable to connect. Start-Up not Start

Hello:
Windows 7/Professional
My PC is Wired-Connection, however it's unable to connect. All of other two PCs are OK with Wi-Fi connection. Also, it says 'Restricted.'
I deleted some of 'Start-up' by accessing 'msconfig,' however it's still the same. I also did 'Malwarebyte,' however nothing wrong found.
Due to this issue, I am unable to open other programs, i.e. Word, Pictures, etc. Practically, I'm stuck!

Any help on this regard would be truly appreciated.

Thanks,

 

Fix network connection issues in Windows