AVAST 5 "refuses" to being either installed or uninstalled

Avast Free Antivirus / Premium Security
1

After updating several drivers (SATA, MB, etc…) i decided to reinstall AVAST5 (after removing it because of several problems)
The installation failed (error by the end of installation) nothing functions.
I tries to uninstall AVAST (in safe mood) and it says that uninstall completed,
however in \program files the Avast library is full.

now i don’t know what to do:
if i will delete the library there is a possibility that i wont be able to install avast again,
and i can’t install Avast.
any idea?

2

Did you use the Avast! removal tool at http://forum.avast.com/index.php?topic=54385.0? Other thing to try would be the Revo Unistaller.

3

i tried Avast removal tool.

however i found out that there is a process running jbrowser.exe which cause system failure.

G

4

Can you kill jbrowser.exe? Do you recognize it? Sounds like a virus-Prevx is uncertain at http://www.prevx.com/filenames/764316679736508700-X1/JBROWSER.EXE.html . Download Malware Bytes and run a scan as batch to see what their opinion is, since it is exhibiting virus behavior.

5
[b]What does JBrowser.exe do? [/b] ■ Process - a process that runs on your computer ■ RemoteCode ■ Installer - Installs software on your computer. ■ KeyLogger - Capable of reading keystrokes from the keyboard. Can potentially log them if malicious
http://www.tallemu.com/oasis2/file/giga_byte_technology/gbt_application/jbrowser_exe/2838299