Easy fix: Go to Start/Run and type in: regsvr32 /i shell32
If that doesn't correct the issue (and it should) use this automated edit:
Search or CMD Opens When Double Clicking a Folder or Drive (Line 18)
http://www.kellys-korner-xp.com/xp_tweaks.htm
To use the VBS File: Download .vbs file and save it to your hard drive (you
may want to right click and use Save Target As). Double-click the vbs file.
You will be prompted when the script is done.
NOTE: If your anti-virus software warns you of a "malicious" script, this
is normal if you have "Script Safe" or similar technology enabled. These
scripts are not malicious, but they do make changes to the System Registry.
--
All the Best,
Kelly (MS-MVP)
Signature changed for a moment of silence.
Rest well Alex and we'll see you on the other side.
Troubleshooting Windows XP
http://www.kellys-korner-xp.com