I recently used Combofix to remove a Zeroaccess Rootkit and it succesfully worked. (at least I think so!)
Upon restarting the computer, I noticed that my Norton auto-protect was disabled even though all my options were saying that auto-protect was enabled. I had a look at my processes and realised that rtvscan.exe was not listed (not running)
Thinking it was a result of running Combofix, I uninstalled Norton Antivirus (Corporate Edition 2004) and tried to reinstall it.
During the installation process, the operation was stopped at the beginning saying that I had insufficient privileges to modify the file rtvscan.exe. Even though I knew that I had admin privileges in my normal boot, I restarted the computer in safe admin mode but same results.
At the moment, I scan my computer with Malware Bytes and it tells me that nothing is infected. I also run Combofix and it tells me that everything ok.
So my question is: How can I reinstall Norton? Am I infected and I don't know it?
Thanks for your time and furute answers! You guys rock!