So I managed to solve this problem myself. For those who have the same situation, you can either try my process or seek help from the professionals of this website. I recommend the 2nd option.
Anyway, I use Win8.1-64bit
and here's how I did it:
>So I've tried deleting certain files that are associated with the GoSave Ad thingy. Firstly, I deleted an empty folder "GoSavie" located in ProgramFiles and another one "Trusted Publisher" located in ProgramData. I tried deleting a folder "GS_Booster" and failed, but i knew this was part of it.
>Next, I installed a free version of Ad-aware and quick-scanned the comp.
>It detected AND deleted .dll files under the GS_Booster folder and one other file somewhere else (im guessing somewhere under AppData) i forgot sorry.
>If you're using chrome, use the file explorer to go to C:\Users\(Rex)\AppData\Local\Google\Chrome\User Data\Default\Extensions and you will find folders labelled in jibberish, I deleted all of them since i had no other extension besides GoSave
(another way to access these files, simply go to your browser settings>extensions and you might find filepaths for the extensions that are installed)
>After deleting these files, I disabled and deleted the GoSave extension under Chrome's Settings and it never came back again.
Hope this helps