Internet Suddenly Stopped Working

Ok, so things were running smoothly in my computer, but then, BAM, I couldn't access the Internet anymore. I rebooted it several times, scanned it with Malware bytes (nothing malicious found) and even tried wireless (didn't work either).

The more baffling thing is, it works fine on all other computers on the house, who are using the same wireless connection as this one.

This is what my computer experiencing the issue is:

Sony Vaio
Windows 7 Home Premium
Intel(R) Pentium(R) Dual CPU E2200 @ 2.20 GHz 2.20 GHz
64 bit operating system
Service Pack 1

It occurred either on Wednesday or Tuesday, when I came back at school (4:00 PM PDT)

Did you incidentally removed the Wireless Drivers, while cleaning up your PC?
At least, it sounds like a Driver Problem.

I didn't clean up my pc

What the hell, the Internet is working again. I had no clue how the hell it fixed itself.

This topic can be locked now.