I had something similar this morning and the register thing helped me. It's basically a fake Antivirus that keeps spamming you with false threats. At least that's what I had, I didn't have the no task bar or such, but I did have the disabled task manager and system restore, etc.
I read theres a way to fix the log off issue as well (I didn't have it myself) also with registries.
This topic is what helped me out.
Some tips from the topic:
Re-enabling task bar:
Goto Run –> Copy & paste the below code:
This will enable the taskbar...
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f
to fix the logoff issue
restore your registry
UserInit = c:\windows\system32\winlogon86.exe
UserInit = c:\windows\system32\userinit.exe
Offline NT Password and Registry Editor can be used http://pogostick.net/~pnh/ntpasswd/
However, if you are already in the loop and can't get to the registry to make the change, here is something I found in another forum that helped me:
Put in your Windows Disc and boot into Repair, you will see a dos mode, press “1″ go into “C:\Windows” directory and type in your user/admin password.
after that go into your “System32″ folder by typing “cd System32″ without “quotes”
then enter in:
“copy winlogon.exe winlogon86.exe” and
“copy winlogon.exe winupdate86.exe” <— just incase
type: "exit" to restart
But, in the end, after you are able to kill the winsetup86.exe process, make sure and run malwarebytes AND update to Win XP SP3. I had to both to keep the problems from coming back.
After fixing the log off issue and such you'll want to make sure the thing is completely gone.
Remove the following if your Spybot or antivirus didn't remove them.
%UserProfile%\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Security 2010.lnk
%UserProfile%\Desktop\Internet Security 2010.lnk
%UserProfile%\Start Menu\Internet Security 2010.lnk
The registry entries that need to be removed are as follows:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “Internet Security 2010