re: System infected with AntiVirus System PRO, Cannot run any new setup
It is correct that there is very less chances of recovering your system completely. The fake antivirus is very annoying. Try to do system restore. This might help you. But system restore will not delete the files of that fake tool. They will still remain in your system. You must scan your system properly with a good antivirus and then check back again. The best tool to deal with this thing is Malwarebytes Anti Malware. I found this tool very effective against malware. You can install that with your existing antivirus. Just do this, go in Safe Mode and then try to run the setup.
re: System infected with AntiVirus System PRO, Cannot run any new setup
Thanks for that all option. I was too dealing with the same kind of problem in my system. System restored worked somehow. It is just a temporary relief. One thing that system restore offers you is to run setup back again. I kept malwarebyte on download and hope that this might help me to clean the fake antivirus files.
re: System infected with AntiVirus System PRO, Cannot run any new setup
Try to boot in safe mode. Then first in Add/Remove program in Control Panel and uninstall the fake antiivirus. Second you have to go inside Program Files and locate it folder. Delete it. You can try using CCleaner to wipe out the entries made by fake tool. Because if those are not cleaned then your system will keep on getting errors. The process that are associated with the antivirus and shown up in task manager is antivirussystempro.exe, uninstall.exe, antivirsystempro.exe and sysguard.exe. There is a folder created in Program Files as Antivirus System PRO. You have to remove it completely. You might not be able to do that in normal mode.
re: System infected with AntiVirus System PRO, Cannot run any new setup
That is not enough. You have to check windows registry also. There are number of invalid keys which are generated in the same and you have to get rid of them. Or else there will be constant errors. First of all this type of fake tools are very nasty to get rid of. I had also downloaded that accidentally. I thought this is a much better antivirus. But it was fake. I installed Malwarebytes in Safe Mode and scanned by system. The tool found around 30 infected file. Then I added Trend Micro, updated it and scanned ti several time until there were no detections. The system looks to be working quiet well.
re: System infected with AntiVirus System PRO, Cannot run any new setup
You lucky to get your system fixed. This type of fake tool are very annoying. My uncle is facing issue with that. He installed that accidentally. Now the system is freezing and I cannot do anything. I kept Windows disc aside, but before that I have to copy all the data from that and move that in some other directory. And then format the system. Because some of the infected files is left behind. That would be the only best way to fix the system.