I also got "duped" into clicking on the device and screwed my windows xp system up...here is your solution to get your computer back...However, before I did any of these steps, I purchased the PC Tools Antispyware Docor and cleaned the system throroughly.
Anyway, I have been working with a microsoft rep all week long via e-mail and this was the only solution that cleared the problem up.
Uninstall Internet Explorer 7
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1. Make hidden files and hidden folders visible
a. Click Start, and then click My Documents.
b. On the Tools menu, click Folder Options.
c. Click the View tab.
d. In the Advanced settings list, under Hidden files and folders, click Show hidden files and folders, and then click OK.
2. Uninstall Internet Explorer 7
a. Click Start, and then click Run.
b. In the Open box, type %windir%\ie7\spuninst\spuninst.exe, and then click OK.
c. Follow the wizard instructions to uninstall Internet Explorer 7.
3. Verify that Internet Explorer 6 is restored
a. Click Start, and then click Run.
b. In the Open box, type iexplore.exe and Windows Internet Explorer opens.
c. On the Help menu, click About Internet Explorer. The About Internet Explorer window opens.
d. If the Version number begins with 6, you have successfully uninstalled Internet Explorer 7 and restored Internet Explorer 6.
Step 3. Reinstall Internet Explorer 7
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1. Please download Internet Explorer 7 to the Desktop. For your convenience, I have provided the link:
http://download.microsoft.com/...
2. Double click the downloaded file to install Internet Explorer 7.
These steps should bring back your sanity...BTW, I was infected with that virus while running AOL and using their MaCafee product....it has now been removed.
Hope this helps for you!