serve.bannersdontwork.com malaware issues

hi,
i'm new here so please bare with me.

i accidentally downloaded a virus/malaware/spyware (not sure) on my laptop and i don't know how to get rid of it. i geeked up and did all kinds of research (see below) and nothing worked. so here i am.
it was a pop-up screen asking if i wanted to download java.exe. when i tried closing it, it asked if i'm "sure i want to leave the page" while i was clicking on yes the notification disappeared & a java.exe filed was downloaded.

no major problems issued, but i knew there definitely was a virus & my computer was slowing down & freezing when i open skype. something was unusual. so i googled what i could do in case of an accidental download of virus on the laptop.
a thread suggested booting my laptop on safe mode with networking, getting ATF then scanning it with malaware bites. so i did & it worked just fine. BUT i did not uninstall the programs & a few days later pop-ups got more frequent (sometimes they went to google then redirected to the ad or just showed a white screen) & there were random changes in the homepage.



so i googled pop-up virus issues and a thread suggested combofix. so i uninstalled malaware bites, my AVG antivirus & i followed the instructions. once done with the scan & the cleaning, i uninstalled combofix & redownload AVG 2014 PC Tune-up.


the pop ups became less frequent but still there, so i took the name of the pop-ups (serve.bannersdontwork.com) & googled it & got a whole lot of threads explaining how to remove it manually. i followed the instructions (uninstalling the banner, showing hidden files, trying to look for the folders to delete them but i can't find them anywhere). so, i can't find the folders (not even under fake names.), i ended a few malicious processes but they keep coming back, and i'm unable to boot my laptop on any mode except for normal mode.

no matter how many F8s i press, i can't get to the menu.

so two questions:
1- how do i get this malaware off my laptop?
2- can it be the malaware stopping be from being able from booting into safe-mode? and if so how do i solve this?




i have a lenovo G470
windows 7 home basic x64
run on google chrome (i have adblock on it)
have AVG 2014 PC-Tune up. (full version)
and i have all my college courses on it so.. please HELP!!
thanks

hi
ok
i'll read the thread, do a full check up & test it for a few days to see if the issue is solved or not.
thanks
will let u know.

hi

once i clicked on the super anti spyware link & downloaded it i got a Smileyswelove tab & some random program (PC accelerer) scanning my computer for "viruses"

everything stopped in the past few days. i force booted my laptop into safe mode & scanned it with avg. the banners stopped, the search go stopped.. everything.
only issue is whenever i turned it on it would give me this notification:
can not find "C:\users\user\appdata\local\instant savings app\repair.js"
which i dont understand.

i'll clean it with Ccleaner (cause i already have it)
run your program & see where it goes.