Often Dell ships with a partition with the Operating System on it to allow restoring the operating system and does not include disks. You need the disks! Call Dell and have them send you the disks. This is a common request.
Get the system restore/XP install, drivers, and disk burner (Roxio?) discs, etc.
You will need the product key. It should be on a tag attached to the computer.
Once you get your disks.
Backup your data. Check each disk and make sure all the files are OK. I have found backup disks that had corrupted files.
Find your product keys, Run "Keyfinder Thing 3.1.6" and print out the results.
http://www.download.com/Keyfinder-Thing/3000-2094_4-10561260.html?tag=lst-0-1
Download and run the Belarc Advisor and print out the results.
http://www.belarc.com/free_download.html
For Internet Explorer:
Install and run: BackRex Internet Explorer (free)
http://www.backsettings.com/internet-explorer-backup.html
BackRex Internet Explorer Backup is a backup and restore tool for Internet Explorer. It allows you to backup favorites, history, proxy settings, fonts, dialup accounts, autocomplete passwords and cookies.
For Firefox:
Install and run: Firefox Extension Backup Extension (FEBE)
https://addons.mozilla.org/firefox/2109/
"FEBE backs up your extensions, themes, and (optionally) your bookmarks, preferences, passwords, cookies and just about everything else Firefox offers."
Create a directory such as "Firefox Backup" and "IE7 Backup" for each browsers backup data in your "My Documents Folder".
This way whenever you backup you files you will also backup your browsers settings. Repeat logged as each users.
Backup your data. Check each disk and make sure all the files are OK. I have found backup disks that had corrupted files.
Find all your drivers and software and software keys now and develop a plan on how you will reinstall everything.
http://www.thefuhrmans.com/reformat_hd.htm
http://blog.angrypets.com/2006/01/ultimate_prefla.html
http://www.smartcomputing.com/editorial/article.asp?article=articles/archive/l0910/32l10/32l10.asp
Reformat and install. (Cleans drive loses all data)
http://support.microsoft.com/kb/313348
http://www.microsoft.com/windowsxp/using/setup/winxp/install.mspx
http://www.whitecanyon.com/reformat-the-hard-drive-in-windows-xp.php
http://www.smartcomputing.com/editorial/article.asp?article=articles/archive/l0910/32l10/32l10.asp
Reload Drivers, Spyware/ Virus protection, All Microsoft updates, Programs, etc.
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In some cases some people like to overwrite the entire disk before reformatting and reinstalling windows to prevent any old files from being recovered and/or to eliminate any possibility (rare) of malware still being on the hard drive after formatting and reinstalling windows . Any of the following will accomplish this.
http://forums.cnet.com/5208-6142_102-0.html?forumID=5&threadID=194873&messageID=2115918
"You can find out the manufacturer of your HD and then attempt to download the formatting tool created by that manufacturer for their HD's. Most HD Mnufactuer have a Zero Fill Low level formatting tool available to erase their HD products. This will clean any existing OS files from your system as well as any viruses other files etc.."
Darik's Boot and Nuke (DBAN) free
http://www.download.com/Darik-s-Boot-and-Nuke/3000-2092_4-10165154.html
http://dban.sourceforge.net/
DBAN will automatically and completely delete the contents of any hard disk that it can detect, which makes it an appropriate utility for bulk or emergency data destruction.
Active@ Kill Disk - Hard Drive Eraser (Free version/ $29.95 enhanced version)
http://www.killdisk.com/
Free version limited to 1 erasure pass and first hard drive.
Active@ KillDisk - Hard Drive Eraser is powerful and compact DOS software that allows you to destroy all data on hard and floppy drives completely, excluding any possibility of future recovery of deleted files and folders. It's a hard drive and partition eraser utility.
WipeDrive by White Canyon $39.95 (no free version)
http://www.whitecanyon.com/
Completely wipe and erase all the information from a computer before selling or discarding it. WipeDrive makes it easy.