HKCU window pops up

[Montani42]

I am trying to help a neighbor who bought a new Compaq running Windows Vista Home version. It seems at random, when using Internet Explorer, there is a small window that pops up with only the letters HKCU in it. The only button on the window is "Okay". Clicking that is the only way to get rid of the HKCU window. They are running the latest version of AVG antivirus and Spybot S&D. Does anyone have any idea what is causing this HKCU window to pop up? The popup stopper does not prevent this.

[AnnMarie]

Hi Montani42. I need to see what is running on this computer and can you confirm that this window only opens up when using Internet explorer please.

Download Deckard's System Scanner (http://www.techsupportforum.com/sect...eckard/dss.exe) (dss.exe) to your Desktop. Note: You must be logged onto an account with administrator privileges.

Make sure dss.exe is on your desktop and open an elevated command prompt. To do this, click on the Start button and type cmd.exe in the Start Search box. Rightclick on it and choose "Run as Administrator". Copy and paste the below string after the prompt>.

"%userprofile%\desktop\dss.exe" /config

When the DSS Configuration display opens click the "Check All" button. Then click the "Scan!" button to start the scan.

Once the scan has completed a textbox will appear - copy/paste those contents back here (main.txt). Also a the second text file, extra.txt, will show as minimized in your Task Bar. Maximize/Open this, and copy/paste those contents back here along with the main.txt please. (The logs can also be found in the C:\Deckard\System Scanner folder). You may find that the maximum characters allowed is exceeded when you post. If so, halve the logs and make several posts.