Try these procedures to update it, then run it in Safe Mode.. First, on a clean machine, download the manual updater file from the link below, then copy it to a CD. Transfer the file to the infected machine while in Safe Mode and run the file to update Malwarebytes..
Malwarebytes Manual Updater link(Clicking on the link below will immediately start a download dialogue window from which you can save the file to your desktop.)
Once that's done, while in Safe Mode, access the C:\Program Files\Malwarebytes Antispyware folder and rename the "mbam.exe" file to something else like "Gogetum.exe".. Once that's done, double click on the renamed file and run a full system scan.. It should run and allow you to clean up the machine.
Hope this helps.
so i was browsing around the web a couple days ago and i stumbled upon a link that gave me one of those fake virus remover popups and continued to get endless popups. eventually the computer just completely froze up for no reason, so i had to turn it off with the power button. i booted it back up and logged on to my user account. basically all my startup stuff loaded up and about 2-3 minutes after startup the computer became completely unresponsive. it continues to happen every time i reboot it. i went into safe mode but i couldn't run anything. can't defrag, can't HD cleanup, can't run my Malware Bytes Anti-Malware. I could run an AVG virus scan but it's a bit out of date and all it detected was like 18 trojans which i wiped. nothing changed..i'm really worried i can't be using my parents' computer all the time, any suggestions?