Problem Event Name: AppHangXProcB1 Application Name: Explorer.E

When I create a new folder (or delete a folder, or rename a folder, the
system hangs with this message:
Problem Event Name: AppHangB1
Application Name: explorer.exe
Application Version: 6.0.6000.16386
Application Timestamp: 4549b091
Hang Signature: fd87
Hang Type: 6144
OS Version: 6.0.6000.2.0.0.768.3

It also hangs when searching with this message:
Problem Event Name: AppHangXProcB1
Application Name: Explorer.EXE
Application Version: 6.0.6000.16386
Application Timestamp: 4549b091
ang Signature: 979b
Hang Type: 6208
Waiting on Application Name: SearchIndexer.exe

I deleted Adobe Reader(did not help), and I have searched internet far and
wide, and I don't know what to do. This has been going on for several weeks
now, and my computer is not really usable.

I jus bought a new HP computer with Vista, and it was doing the same thing,
so I returned it for then next step up, and now this one is doing the same
thing. I'm pretty comuter savvy, but this one has me stumped. I bought an
extended warranty with it, so I'll let the Fry's computer techs figure it
out. I even did 3 recoveries, 1 with the recovery disc I made, and even that
didn't help. I'll be shooting HP an email as well.