It sounds like a possible malware infection.. Try this tool using the isntructions below:
Please use a separate "clean" computer and download the Malwarebytes tool and it's manual update from the link below.. Once downloaded, rename the program installer "mbam-setup.exe" file to something else like "Gogetum.exe", then copy the installer file and the update file to a CD or flash drive.. Transfer the file to the problem machine, then install the "Gogetum.exe" file, then run the update to get the program current.. After that, run a full system scan and delete anything it finds.
Malwarebytes Download Link (Clicking on the links below will immediately start the download dialogue window.)
Malwarebytes Manual Updater link
If the program installs correctly but then won't run, please access the "C:\Program Files\ Malwarebytes Antimalware folder and rename the "mbam.exe" file to something else.. Make sure it has a .exe file extension and then double click on the newly named file. Malwarebytes should run correctly now. Delete anything it finds..
After running the scan with Malwarebytes, then download, install, update, then run a full system scan with a second tool below:
As before, attempt to download and install on your current computer but if it's unable to do so, you'll need to download the program on a different "clean" computer, then transfer it to your machine.. After it's installed on the problem machine, update it, then restart the computer into "Safe Mode" and run a full system scan and delete all it finds. While you're in Safe Mode, then run a second scan with Malwarebytes. (As before, it be necessary to rename the installer and program files to get the program installed and running.)
SUPERAntispyware Removal Tool
After doing so, restart into "normal" windows and run another scan with both tools.. It frequently takes multiple scans till the scan comes up clean.
Hope this helps.
PC: Compaq Presario SR1820 NX
I was using AVG 8 Free version with Comodo Firewall and Spyware Dr. up until a few days ago when nothing would update. Also I can access the internet through Firefox 3 but not IE7, which occurred around the same time.
Uninstalled AVG, Comodo and Spyware Dr., used registry cleaner and defragged. Restarted and installed PC tools firewall and Avira anti-virus. PC tools firewall says it's updating automatically. Tried to get Avira to update and it can't make a connection to internet. Downloaded Spybot Search and Destroy, when trying to run setup it says " an error occurred and a connection with the server could not be established."
Nothing that I tried has made a difference thus far.