safe to shut down puter

[bleachycd]

I told my daughter I'd ask anyone here if they had any idea why this happens.
When they boot up the puter it does that fine but in a minute or two a popup comes up and says it is now safe to cut off your computer.
I forgot to ask her what kind of puter she has or how old it is.
Thanks for any help.
CD

[michaewlewis]

Does it give you an option to cancel the shutdown or does it just shutdown without you being able to use it?
It could be a virus or another form of malware. Try running some antivirus and anti-spyware software on it.
Many forum members would advise these programs: AVG Antivirus Free, AVG Anti-Spyware, Adaware 2007, and Spybot Search & Destroy
http://us.mcafee.com/ also has a free online virus scanner (no removal)

Also, get back to us on the specs of the computer and everything

[beanhead07]

Be sure to boot into safe mode when you run the scans. (press F8 while the computer is booting up)

[patio]

A lot more info on the machine, OS and what happened prior to this would be useful...