Cannot Run Adaware or HiJackThis

[ChrisEdmSkiBum]

After installing adaware to try and deal with redirecting IE pages, I tried to run a scan of my computer.  It kicked me out of the program with no error message whatsoever in about 10 seconds.  When trying to reopen the program I get an error message "Failed to Connect to Service".  My internet connection how ever is fine.  I then downloaded HiJackThis and tried to give that a run, same issue.  It kicked me out of the prorgam with no error message and when trying to open it up again i get this error message "Windows cannot access the specified devide, path, or file.  You may not have the appropriate permissions to access the item."  Yet theres only one profile on this computer.  Im lost.  Help anyone?

Chris

[Allan]

Instead of AdAware try either MalwareBytes or Super AntiSpyware. If no luck, try running from Safe Mode.

[SuperDave]

Some malware/spyware prevents anti-malware/spyware from opening. Try renaming the exe file for ad-Aware.

[CBMatt]

If it's particularly tricky, you may need to try both of the above suggestions.