My pc was automatically restarat i think virus attacked in my pc

Please update the firmware of phone or may be the phone contains virus.

You operating systems is corrupted and need to reformat.

Some reasons :

Maybe to uninstall some programs that cause to delete some fatal systems driver like rundll associated with that problem.

Virus attacked you computer by merely surfing the internet and you virus software automatically deleted the infected file.

mY Dear:
First:
restore your Phone Settings
IF Restart problem not Solved So
Secend Option:
Please Format Your Phone
we can solve this problem but i need you to backup the whole DATA that you have in the phone and perform this reset procedure.
*#7370# or *#7780#
Default security code is 12345
release some memory then it will b opened
your phone or memory card get attack by virus. pls do a format phone and memory card.
If Problem Not Solved So
Very Best Solution:
flash new software install in the phone problem will solved quickly

Which is the OS in ur PC? Win XP onwards it automatically detects any usb storage unless its damaged. Check for the USB cable. or try some other USB port or other PC to make sure of it.

you can fix this just be uninstalling and by reinstalling the software. i suppose there is a virus attack in your computer

Format all your hard drive and do a clean install, One tip though, how to avoid Virus attack is not letting the virus to your system, how? for example, a virus came from your USB drive, it won't attack your system if you cancel all the autorun pop ups when you insert the usb drive and do not double click on it, double clicking on USB triggers the Autoplay and virus spreads out like a pandoras box, If you get what I mean it could save you from virus.

Install a good Anti Virus of your choice and always update the virus definition in order for you to be fully protected and be very careful on clicking links on some websites, anti virus has a feature that knows if a website has a potential virus or not, use it.

your system are attack virus or some spyware and spam. Try to install Latest Virus Remover

no components are attacked by viruses or trojans, only software and the bios can be attacked, and obviously they are prevented by antivirus/spyware programmes

Check the link...
This may help you a lot...
http://techiecorner.blogspot.com/2006/10/yahoo-messenger-virus-attack-remove-it.html

Cheers -Parveen