Nice post Eagle9 but some further information is necessary. And I have a couple of questions to address this information. First, how are the myriad of updates affected? I.E. will the user have to go to Microsofts update site and reupdate the newly repaired installation? Also, is this method truly proven to solve all problems? Some viruses can infect the boot sector of a Hard Drive or even the BIOS, which in this case you would still have problems.
With Windows there are really only two ways to truly clean your system. Wipe and resinstall or switch to an alternate OS such as Mac or Linux. I would suggest some try the later solution.
I'm no expert when it comes to computer software. I think that if you had a slipstreamed WinXP installation disc, you would still need all of the other Windows updates from MS.
Also, is this method truly proven to solve all problems? Some viruses can infect the boot sector of a Hard Drive or even the BIOS, which in this case you would still have problems.
No, it won't solve all problems. Yes, you are correct about viruses, and I think you could include rootkits and some of the other malware.