hello thanks for your previous advice but i need some more help with my pc
there is a yellow triangle with an exclaimation mark inside popping up
which says
"Security Alert: NetWorm-i.virus@fp"
another one, a box with red border is popping up saying
"Your computer is infected
Critical System Error"
both are at the right hand bootom of the task bar
My system freezes frequently
is there any spyware scan that is recommended for the cleaning of these pests
i would be glad for some more of your responses
thanks in advance

Try SpyBot-Search and Destroy & Ad-Aware

brian99, here is all the info needed to get your comp clean, no need to buy anything, stick to the free programs, just a matter of finding sites that suit your skill level.
Securing Your Computer: Temporarily Disable Real Time Monitoring Programs.
http://wiki.castlecops.com/Securing_Your_Computer:_Temporarily_Disable_Real_Time_Monitoring_Programs
If Your PC is Infested w/ Spyware & Adware...
http://spywarewarrior.com/sww-help.htm
Trustworthy Anti-Spyware Products ( near the bottom of the page )
http://www.spywarewarrior.com/rogue_anti-spyware.htm
http://pandaman.my.contact.bg/Gen_MRI.htm
Note !!! Now, if you wasn’t able to clean your computer, perform the following, Special Clean instructions.
http://pandaman.my.contact.bg/special_clean.htm
http://www.malwarehelp.org/how-to-curepart-3-using-hijackthis.html
http://spywarewarrior.com/sww-help.htm
http://spywarewarrior.com/viewtopic.php?t=6917
http://spywarewarrior.com/viewtopic.php?t=6914
http://spywarewarrior.com/viewtopic.php?t=10
http://spywarewarrior.com/viewforum.php?f=30
http://www3.telus.net/dandemar/slowcom.htm
http://discussions.virtualdr.com/showthread.php?t=167915
http://www.wilderssecurity.com/showthread.php?t=50662
http://forums.techguy.org/security/208517-general-security-information-how-tighten.html
Important: Create a specific folder on your hard drive called HijackThis to keep its backups.
You can do this by going to My Computer (Windows key+e) then double click on C: then right click and select New then Folder and name it HijackThis. Download and unzip HijackThis.exe into this folder.
http://www.merijn.org/downloads.html Or, http://tomcoyote.com/hjt/
If possible run HJT in Normal mode ( not Safe ) with all your normal startup's working.
HijackThis Tutorial - How to Analyse your own log
http://spywarewarrior.com/viewtopic.php?t=3624
http://hometown.aol.co.uk/jrmc137/hjttutorial/tutorial.htm
http://www.bleepingcomputer.com/tutorials/tutorial42.html
http://www.malwarehelp.org/understanding-and-interpreting-hjt1.html
HijackThis log file analysis ( online )
http://hijackthis.de/index.php?langselect=english
Or,
http://startup.networktechs.com/page-68.html
http://hjt.iamnotageek.com

Please download HJTsetup.exe from this link http://www.thespykiller.co.uk/files/HJTsetup.exe to your desktop.
Doubleclick on the HJTsetup.exe icon on your desktop.
By default it will install to C:\Program Files\Hijack This.
Continue to click "next" in the setup dialogue boxes until you get to the "Select Addition Tasks" dialogue.
Put a check by "Create a desktop icon" then click "Next" again.
Continue to follow the rest of the prompts from there.
At the final dialogue box click "Finish" and it will launch Hijack This.
Click on the "Do a system scan and save a logfile" button. It will scan and the log should open in notepad.
Click on "Edit > Select All" then click on "Edit > Copy" to copy the entire contents of the log and post it in this thread.

Do not fix anything yet unless you know what you are doing. This is a powerful tool that can crash the computer if used improperly.

Run this free online scan from Panda

When the scan completes, if anything malicious is detected, click the See Report button, then Save Report and save it to the desktop, then copy/paste into the text editor and post it.