Hi,
There is an easy way to do this, and a hard way.
Easy Way: (Not that reliable)
1. Open up CMD, Press the Windows Key + 'R', then type in 'cmd.exe' without the quotes.
2. Type in 'ipconfig' without the quotes.
3. Now type in 'ipconfig /release'.
4. Now type in 'ipconfig /renew'.
5. Exit out of CMD and restart your computer.
6. Restart your Internet Modem/Router.
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Hard Way:
1. Do the Easy Way.
2. Download TMAC v6 from: https://*******/tmacdownload
3. Open up TMAC.
4. Now click on 'Local Area Connection' and highlight it.
5. Click the 'Random Mac Address' button a couple of times.
6. Now click 'Change Mac Address'.
7. There should be a Message Box popup saying the Mac Address was changed Successfully.
There you go!
(If this did not work, I am sorry. These are the only possible ways right now.)
Hope this helped!
--Coridex73