missing.dat file on startup

[Christina]

I am hoping someone can help with a error message I
receive during startup. "data1.dat file is missing"
I have not noticed any major changes in my operating
system but I would like to restore the file and need to
know where to go to get it.

 

[Tom Swift]

You seem to have unwittingly invited adware or spyware onto your computer.
Now you must install one of the many adware/spyware removers available on
the Internet. Here are three popular choices (alphabetically):

Ad-aware: http://www.lavasoftusa.com/software/adaware/
Pest Patrol: http://www.pestpatrol.com/
Spybot S&D: http://www.safer-networking.org/

Many adware and spyware programs are specifically designed to be difficult
to remove, and some may be impossible to remove without damaging your
system.

Tom Swift