I agree with malke, since you do not know much about computers I would also
do a clean install, remember the CD is not enough you must have the Key code
as well, XP will ask for this during the installation.
If you do not have the key and can boot the PC then run this utility to
retrieve it;
http://www.magicaljellybean.com/keyfinder.shtml
If you have tried to remove the virus and was unable to, I suggest these
steps below before you install XP,
Clean install:
In order to do a very clean install you may want to download and create a
(FKA) Low Level Format diskette. You should be able to get a LLF (HD format
utility that writes 0's to the drive) utility from your HD manufacture:
IBM(Hitachi)
http://www.hgst.com/hdd/support/download.htm
Seagate
http://www.seagate.com/support/disc/utils.html
Maxtor
http://www.maxtor.com/en/support/downloads/index.htm
Fujitsu
http://www.fel.fujitsu.com/home/drivers.asp?L=en&CID=1
Samsung
http://www.samsung.com/Products/HardDiskDrive/utilities/index.htm
FAQ: Low level format
Western Digital
http://support.wdc.com/download/index.asp
The reason is that some viruses and even Windows OS can leave traces of
itself on your HD, I have formatted numerous systems, set specificate
settings, re-formatted the unit using Windows XP OS and there it was most
settings where already set, this LLF utility will insure that the hard drive
be wiped clean for XP or any OS install. Be advised that this utility will
wipe all partitions from your drive so you will have to re-create them, no
biggy this is part of the OS installation process.
Insert XP CD into your CD-Rom drive (the BIOS must be set to boot from the
CD-Rom 1st), power down the PC. Before powering the PC on, unplug the
Internet connection, scanners, printers, any peripheral attached including
modems, wireless cards.
Power on PC, when windows starts create your partition(s) as desired
(example below), format your primary partition and install XP. Once the OS
has installed do not connect to the Internet, install your anti-virus and
firewall, connect to the Internet and do your live updates for your
anti-virus, firewall, then windows, after this has completed install the rest
of your SW and perform your updates to these.
Download the latest drivers for your peripherals, then install your
hardware, (note: some peripherals require that you first install the SW prior
to installing the hardware, consult your manufactures manual for
instructions).
Note: Partition creation suggestions, this example is for a drive of 80GB’s.
C: (20 GB), D: (60 GB), Install the OS to the D: drive.
Why 20 GB initial partition? It is because you may want to place your
pagefile on this partition most Windows OS’s work better when the pagefile is
on a different drive and since Windows accesses this file every time it is
used this would speed up file access, or file swapping. Another would be that
if for some unforeseen reason you have to format your PC you can place your
Data on this drive then format your boot partition drive safely. I have had
great success by doing so, it is just a preference.
Good Luck,