You can reinstall Windows after you reformat your drive.
First you need Windows boot disks. You were supposed to create them when you first got your computer, but you can download them here:http://www.microsoft.com/downloads/details...55-BD5AFEE126D8
I assumed you have Win XP Home. If you have XP Pro, search for the proper page to download the floppy disks for Pro.
After you reformat your hard drive following instructions you will find on the boot disks you can install Windows with the destructive restore cd that was supplied with your computer.
Creating startup disks (floppy disks)
1.Click Start, then click My Computer.
2.Right-click the Floppy drive icon, then left-click Format
Place a checkmark next to Create an MS-DOS startup disk.
Click Start, then click OK to create the startup disk.
At the Format Complete message, click OK.
Finally, click Close.
Use the following steps to recover the PC from a set of recovery discs (either CDs or DVDs):
1.Before recovering, back up files from the My Documents folder and from other folders you may have created.
2.Disconnect all peripherals (like the Personal Media Drive or USB thumb drives) and internal non-preinstalled IDE devices from the PC. Do not disconnect the monitor, keyboard, and mouse.
3.Turn on the PC and press the Esc key when the first logo screen appears.
Insert the first recovery disc into the top CD or DVD drive.
Use the Up, Down Arrow keys to select the CD that has the recovery disc and then press the Enter key to start.
If a screen displays "Press R for recovery options", press the R key.
A screen with a list of options should appear: R, F, and Q. These options can change depending on the state of the hard drive. For example, if the hard drive is new, only R lists.
Do the following depending on your situation:
Press F to perform a destructive recovery. This will format the hard drive. If the hard drive is new or has had the recovery partition damaged, this option will also create new partitions and format the drive.
Read and respond to each window and screen that appears.
When changing discs, do not press the OK button. Instead, wait for the drive to read the disc and it will automatically continue the recovery.
After the System Recovery is complete, the PC restarts and continues into Windows setup. Complete the setup screens and wait until the computer finishes the setup. It may take a long time to complete Windows setup. This time varies and may take more than several hours. Recovery times are most affected by using recovery discs that were ordered from your computer manufacturer and/or the amount of files that were stored in the user account folders (Like My Documents and the Desktop).
When you can access the Windows desktop, immediately enable the Firewall, download Windows Critical updates (Including SP1 and SP2 if you do not have them), and set a restore point. For more information, refer to Things To Do After Performing a System Recovery in Windows XP.
Re-install software applications that you added after puchasing the PC, and any files that you have backed up.
The first thing you must do after Windows boots up is make sure your firewall is on!
You can download a better one later.
Depending on how old your computer is you may have to reinstall SP1 AND SP2. If your computer is old enough not to have come with them, they won't be on the restore disk and you must install them ASAP or you will shortly be back here trying to reload Windows again, because without both of them installed you will rapidly become seriously infected again just as you are now.
After downloading ZoneAlarm or another firewall of your choice, installing it, and updating it, you can then begin to install an Anti-Virus program.
Free Zone Alarm SE: http://www.zonelabs.com/store/content/comp...;NONE?lid=ho_za
After ZoneAlarm is up and functioning, disable the Windows XP firewall so it doesn't conflict with ZoneAlarm. By the way, ZoneAlarm is far superior to the firewall that comes with XP because it provides protection from both incoming and outgoing threats - Windows only protects against incoming threats leaving you no protection and no warning about dial homes, malicious telephone dialers that can run up huge phone bills that you WILL be responsible for, Trojans, and other malware that turns your machine into a Zombie without your knowledge or consent.
Next - A resident and regularly updated Anti-Virus program is absolutely necessary.
AVG is a really good freeware AV program that is recommended by most of us here.
Use only one AV program running though as they will conflict if more than one is used. If you prefer another good AV program that updates regularly, use it, but you must use one!
You can get AVG here free:http://www.grisoft.com/us/us_index.php
Next- Anti-Spyware and Anti-malware Aps:Anti-malware freeware
(You can run as many of these as you wish. Generally there is no conflict between these and you should always run several consecutively - not at the same time)
*AdAware SE: http://www.lavasoftusa.com/software/adaware/
*Spybot S&D: http://www.safer-networking.org/en/index.html
*the above are the two most important to have!
Microsoft Antispyware Beta: http://www.microsoft.com/athome/security/s...re/default.mspx
Microsoft Malicious Software Removal Tool (Win XP and Win 2000):http://www.microsoft.com/security/malwareremove/default.mspx
AČ - Free from http://www.majorgeeks.com/download4281.html
. Run it, click Search for Updates, then click Scan.
CW Shredder removes some variants of spyware known as the Coolwebsearch Trojan. The Trojan takes advantage of a flaw in a key component of Windows -- Microsoft's version of the Java Virtual Machine -- to install itself via popups often found on porn and illegal software (a.k.a. "warez") sites. Run CWShredder after installing, and have it look for updates. Then click the "Fix" button, and the program will both scan and fix any problems it finds. If your system does not have this particularly nasty kind of spyware, it will give you the good news.
Microsoft Baseline Security Analyzer (MBSA)
MBSA is an easy-to-use tool designed for the IT professional that helps small and medium businesses determine their security state in accordance with Microsoft security recommendations and offers specific remediation guidance. Improve your security management process by using MBSA to detect common security misconfigurations and missing security updates on your computer systems.http://www.microsoft.com/technet/security/...s/mbsahome.mspx
Occasionally you will want to check and verify that your AV program and Anti-Malware programs haven't missed anything.
The following are web based tools that you use to scan for Malware and Viruses (In addition to the ones you downloaded and have installed on your computer)
Most if not all of these use Active X technology so you must use Internet Explorer when you run them.
Online trojan detection scans here - http://scan.sygatetech.com/pretrojanscan.html http://windowsecurity.com/trojanscanWeb based online Antivirus and anti-malware scans:
(these can and should be run regardless of whatever else you are using. You must use Internet Explorer to run these for the same reason I stated above.)
Kaspersky Anti-Virus Web Scannerhttp://www.kaspersky.com/service?chapter=161739400#betatest
Windows Security Trojanscanhttp://www.windowsecurity.com/trojanscan/trojanscan.asp
Panda Activescan (IE only)http://www.pandasoftware.com/activescan/co...n_principal.htm
Trend Micro antivirus and malware scan:http://housecall-beta.trendmicro.com/en/st...orp.asp?id=scan
Etrust Anti-virus web scannerhttp://www3.ca.com/securityadvisor/virusinfo/scan.aspx
You have a serious amount of work to do!
Edited by Enthusiast, 27 September 2005 - 12:04 AM.