avira wont download all the way. im in safe mode with networking?

at the installation progress screen it says extracting (a hole bunch of stuff…) and then it goes to another screen it says preparing installation and then fills halfway and disappears. i cant run it theres no icon for it i try to install it again and it does the same thing what do i do? i cant get out of safe mode though i have the “blue screen of death” i need some type of virus removal … thing plz help!!!

Chosen Answer:

different free anti virus is avast.Avast http://download.cnet.com/3001-2239_4-10019223.html?spi=c83cd6c11d3c8b9ee3ab28193f953b8d
Download malwarebytes and superantispyware then run scans with both.
Superantispyware http://download.cnet.com/SuperAntiSpyware-Free-Edition/3000-8022_4-10523889.html?tag=mncol
Malwarebytes http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?tag=mncol
Combo fix an extremely Powerful tool. Use as a last resort. http://www.bleepingcomputer.com/combofix/how-to-use-combofix
Can’t install or run Malwarebytes
Rename the mbam-setup.exe if installation fails.
Rename the mbam.exe if the program installs but doesn’t run.
Start in Safe-mode with Networking if program fails to install run or update.(Hit F8 key repeatedly when computer is starting after a reboot)
by: Person
on: 20th October 09