How many computers can a Windows XP Profesional OEM license support?
550499
using the same license for all 15 computers is not wise because Microsoft recently updated their Windows genuine advantage program to exclude the other 14 computers from getting updates. The program then accuses you of piracy, and posts signs all over your computer that "this copy of windows may be counterfeit (including posting signs on the boot and lo gin screens)\n\nit may be sensible to go with a version of Linux, depending on the needs of the office.\n\ncheck out all the links below (1 copy of xandros can be installed on all the computers and is the most compatible with windows applications)
919402
There is no program available that will automatically do this. You need to either know the make and model of your original computer, or the statistics such as processor speed, hard drive space, and amount of RAM. You can see the minimum system requirements for Windows XP at http://www.microsoft.com/windowsxp/pro/evaluation/sysreqs.mspx
1004647
I tried installing it twice on my XP home, but it crashed when I started it both times. \nThats all I can tell as of now, but thats something, wint it!
15905
Read the EULA (End User License Agreement) and look for details on copying. Most software will allow you to make one copy for backup purposes, but that means that it is not for installing on more than one computer. There are many different licenses, so if you are concerned about legality, you should read the EULA before doing anything.
896915
Do you mean that you are running a pirated XP? Well, I used to have one until a month ago. Its not that bad, but there are many security lapses, of course. I am now using genuine XP Pro now, and its much better. Moreover, you cannot also get any of the new Microsoft products, like Internet Explorer 7 or Windows Defender or WMP 11. Still, if you cannot afford a genuine XP, then the pirated one is OK. By the way, a free and open source Operating System called Ubuntu is available over the net. My friend says its pretty good, and has all the basics of XP Home edition. You may like to have it.\nhttp://www.ubuntu.com/\n\nDon't do anything yourself. Hire a technician or a professional.
1009879
Microsoft is getting tough on people who use pirated software.  If the XP doesn't pass the validation scan MS offers an electronic Product Key for $149 USD (XP Pro) or $99 (XP Home).\n\nThere are several legal merchants who sell the software for a lot less.  Try www.edirectsoftware.com and they had XP Pro SP2 full install disks for about $100 USD.\n\nIf you purchase a full install CD you don't have to do a reinstall.  You can do a repair.  That let's you overwrite the existing XP, repair or replace any corrupted or missing files, register the new Product Key, and you don't lose any of your settings or other applications.  You will have to visit the update site to reinstall patches and fixes.
291196
Seems like it is hard to find, I would try these as a starting point. I would assume it is that same as Windows XP, I have included a few articles about these requirements.
660327
I think what you meant to say was you need to re-install XP...\n\nYour Microsoft license should be affixed to the side of your PC.  All manufacturers (large and small) are required to put it there.  Any disk valid disk should do as long as you have a valid license.\n\nNow if you really meant reboot...you don't need the operating system disk for that.  It's already installed.
779345
It's not the COA that determines if XP is legal.  It's the 25 digit product key that determines if it's legit.  If the product key  was used to activate other copies of XP, Microsoft might have declared the product key as invalid and any computer that used that key will no longer pass the validation scan.  Or the machine might have a corporate copy of XP Pro on it.  Microsoft will probably offer to sell you a new electronic upgrade for $149. to make your XP Pro legal. Or you can buy your own install disk with a never before used product key.\n\nhttp://www.microsoft.com/genuine/downloads/whyValidate.aspx\n\nplrr
391094
Yeah it's possible. Here's the MS article: \nhttp://www.microsoft.com/windowsxp/using/setup/learnmore/multiboot.mspx
633781
Use genuine Windows XP Edition
478480
Unless the computers are exactly alike in every specification like processor speed, amount of memory, hard drive space, and cd/dvd drives, no.\n\nMicrosoft has protected itself by forcing Windows XP to report back every now and then, to make sure it is not being used on more than one computer.  There is a file however, that you should make a backup copy of, in case you need to replace a hard drive and reinstall XP.  It doesn't happen every time, but sometimes Windows will think it is being installed on a different computer, so placing this file in the system will tell it otherwise.  When purchasing Windows XP directly from Microsoft, they will give you a 10-15% discount on additional copies, but each license is limited to one single computer.
891361
Yes you can get away with the Windows XP Pro Upgrade....I know someone that did the same thing. They had a bootleg copy of XP Pro on their machine and started having problems and they bought XP Pro Upgrade and did a upgrade and his is legal and works great now..Just do a upgrade when asked not a  new install( which you can do with the upgrade disk)..Windows Vista won't be out for another 6-8mnths and then it will be in the beta stage and will have bag bugs and need fixes for atleast 1yr after that. XP Professional is no obsolete yet it will be the main stay for atleast 2 more yrs. Then Windows Media and Vista will be the norm. What ever happened to Windows Longhorn......Thanks
314165
Well, unlike Butchell, I will ASSUME you purchased a legal copy and are having problems.  If this is the case you might need to contact Microsoft licensing to unlock your code.  Did you change hardware to the point where it locked you?  If you have an OEM license, you need to understand that license is bound to the physical hardware of the PC.  Changing any internal component (even a video card) voids the license and Microsoft expects you to buy a new license (yes...seriously...I just talked to their licensing support about this like a week ago)\n\nHowever, if Butchell is right and you are using an illegal license there is a way to break the license and enter a new one.  Do a search for "change XP license" in google and you will find a few ways to do it.
396587
Check to see if your computer will support running Windows XP Professional. \nRecommended by Microsoft:\n300 MHz CPU *\n128 MB of RAM *\n1.5 GB of available hard disk space *\nSuper VGA (800 x 600) or higher-resolution video adapter with at least 8 MB of video RAM and monitor\nCD-ROM or DVD drive\nNetwork adapter\nSound card and speakers\nKeyboard and Microsoft Mouse or compatible pointing device\n* I recommend a minimum 450MHz CPU, 8GB HDD, 256MB of RAM\n\nthen Purchase an OEM license of Windows XP and replace your current outdated operating system.\nYou can find stores on eBay who sell windows XP OEM version for under $150.
1044703
Windows XP Professional Service Pack 2
1070175
If your replacement motherboard is similar to your original motherboard with respect to specifications (chipset, etc.), you may be able to get away with it.  Windows XP installations are tied to a specific hardware configuration, and if that changes significantly, you may have to re-register with Microsoft - usually by calling it in or going online.  (Microsoft Office installations are similar in that you have to re-register if something major changes.)\n\nI replaced a motherboard in a computer I had and reinstalled everything fine - the restore disks didn't detect any problems and reinstalled everything for me without a hitch.  The trick there was that my replacement was the exact same model as the original, so nothing in the new motherboard alerted my restore disks to a potential problem.\n\nAs for other software aside from Windows and Office, I don't think you should have a problem.  Most other software doesn't care if you swapped out a hard drive or added memory, unless their installation schemes are tied to hardware as well.  But as far as I know, most software doesn't have this extra security measure in place.