avast! Ransomware Removal doesnt do anything!!

i have downloaded the app via my PC for my phone(xperia arc s) and installed it too, the app should give me further instuctions but it doesnt, it just says;
avast! Ransomware Removal
killing all the Ransomware
it been like this for 1:30 hours now, does somebody know what the problem is?
my phone is blocked by interpol

I had to start my tablet/android in safe mode. Your phone may not be same path to safe mode as for the Lenovo ideatab, long hold the power off button (screen comes up after holding down the power button) and it asked me if I wanted to start in safe mode. went to settings and then to apps. When the problem started I had a screen popup called “browser update” I must have hit it. I uninstalled “browser update” . Then Downloaded the avast ransomware removal tool which doesn’t work in safe mode apparently. I restarted the tablet in normal mode. ransomware (some fbi bullcrap stuff with picture of Obama ) didn’t show up. I then was able to run antivirus avg and avast. two apps came up suspect (video players I don’t remember downloading). I uninstalled them. I then ran the avast ransomware removal tool. Took about 5 -10 minutes. Then it told me to uninstall it. My ability to turn on the autorotate function was disabled and greyed out. Other than that I seemed to survive the $%&$ fbi ransomware.

Good luck.