Windows cannot find '(null)'

Configurar un arranque limpio
forospyware.com/t30402.html
Source
"Windows cannot find '(null)'. Make sure you typed the name correctly, and try again. To search for a file, click the Start button, and then click Search ."
Error message when trying to navigate in Internet Explorer
Possible solution
Re-install Internet Explore 7

• Please go Here (Click on the Blue link) and download a fresh version of Internet Explore 7.
• Uninstall the version of IE you have installed now, to do so follow these steps:

1. Click Start
2. Click Control Panel
3. Double click Add or Remove Programs
4. Scroll down until you find Internet Explore
5. Then click Change/Remove, and follow the prompts.

** Please Note: If you are unable to see IE7 in Add or Remove Programs follow these steps:

• Click Start
• Click Run
• Type or copy and paste, into the text box:

%windir%\ie7\spuninst\spuninst.exe

• Then Press Enter **

• Restart your computer.

• Install the fresh version of Internet Explorer

Source
Inicio-control panel-Opciones de internet
Opciones avanzadas-restaurar configuracion avanzada
opciones de internet-opciones avanzadas-restablecer