can i use my product key on more than one computer,will microsoft be aware of this and how?XP PRO SP2?
970567
Yes there are limitations though.\n\nI have tried loading Home on 1 unit and did it over 3 times from scratch (because of some errors), when you have loaded it once and verified it, your serial is already marked and on the 4th try i couldn't update anymore . You'll have to call and they'll fix it. ( Dont be scared People do make mistakes, just expalin it... You have a certain no of days to use XP before you have to register)\n\nYes \n\nI have tried it XP Pro  on 3 computers but not on the same network.  \nUpdate it on different dates.\nThis will work definitely. This is Registered ok. No problems\n\nWhen you have the same serial on 2 or more units in a network, a warning will pop up stating that you are running already ( something like that i forget.) \n\nI gave up on Windows. I have been using Mac for almost 2 years now.\n\nJust in case, there is also a limit to Office on how many times you can use the serial over.
1178838
simply put, the people who sold it were not legally allowed to sell the Microsoft product. To use windows you have to pay Microsoft a license fee, since you got the product from someone else, Microsoft did not get their money so and you were not provided with a product key to legally use it.\nThat is why Microsoft uses product keys, to prevent people from selling multiple copies of their software without giving any money to Microsoft itself. It is a form of copy protection.\nYou purchased a pirate copy of windows.\n\nok enough of the preaching. If you still want to use this product there are numerous websites that provide product keys for pirated software. However I am not going to help you avoid the license fee, but I am sure google can aid you in your search.\nOr you can ask the people you bought it from if they have the key that came with it.
650871
No you cannot.  Software licenses are for 1 computer unless specifically stated.  There are many excellent free alternatives though.\n\nFirewall:  Zonealarm\nAnti-virus:AVG\n           Avast\nAnti-spyware:Ad-aware\n             Spybot Search and Destroy
982995
if you have your own valid key  for the same operating system, then yes.. you can use their disk.  When it asks, you just input your own information.
45140
When this happened to me I called the phone number provided by the message from XP. They asked for my original license number and asked if I was using the software on more than one computer. The phone operator gave me a new key code to enter. Not a problem, just a hassle.
128360
The ability to do that was disabled in SP2 in order to enhance security. There's a workaround, but it requires a little technical savvy:\n\nI was going to paste it here, but nevermind, apparently registry keys are too long to be typed here (it cuts them off with ...) Anyway, it's at the very bottom of the page in my source, though. Can't miss it
17948
When you install it on your computer and connect to the internet, it should register it for you. If you got the computer with windows installed on it, you don't have to worry about it, it should be already registared for you. The other option is that you call to Microsoft and registar it. You have to give a long code to them though.
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
599692
If you are talking about software product keys, then look on the manuals those are normally on there.  If you are looking for computer product keys, then look on the sides, top, or back of the pc tower.  If you have a laptop, look for the product key to be on the bottom of the laptop.  The product key should be green with numbers and have microsoft on it.  If you still cant find it, then call the place where you purchased your computer and theys hould be able to help you out.  If you purchased it locally or it was a long time ago, then call a local computer place in town, they should be able to help.
484828
Your unique product key can be a found in a sticker which is sticked to your computer CPU. Try looking for it. It should be there ... Good luck!
373725
It won't.  It shows you paid for Windows Millenium only. If you pay for Windows XP you will get a key that works for Windows XP.  Really... it is like trying to use the key to your old car to start your new car...
1008988
Nope.  Each Windows CD is licensed for use on only one PC.  Because of the way Windows XP does online activation, if you installed it on a second PC, when it dials MS to activate, it will find that the serial number has already been used and refuse to activate.  After 14 days (for Windows XP Home) it will stop working on the second PC.  So if you have two PCs, you will have to purchase two copies of Windows to keep it legal.
265699
On the same computer...as many times as you need.  You may have to recertify with Microsoft, which is a pain, but they'll let you keep using it on the same box.  \n\nOn several different computers...well, that's illegal isn't it?  If those computers are connected to the internet, they may communicate back to the 'mother ship' at Microsoft and disable your ability to install.  I don't know what the limit is, though.
785901
Hi,\n\nTry using the Windows Product Key Update Tool, available here:\nhttp://www.microsoft.com/genuine/selfhelp/PKUInstructions.aspx\n\nThis should allow you to put in your now genuine copy's key to overwrite the other one. It should also check the windows system files to make sure they're valid too.\n\nPlus a thumbs up for your q ;)\n\nHTH
533642
If you registered with Microsoft, call their support and they may be able send you copy. Most likely it is out of support so    you may be SOL
1112094
The MS online electronic validation key is $99 for XP Home and $149 for XP Pro, both with SP2.  You can usually find legal versions (recommend full install rather than upgrade) for less at:  www.edirectsoftware.com\n\nYou can do a repair with the full install Cd and enter the new 25 digit Product Key.  That will give you a legal version as well as repair any missing or corrupt files.  You will have to go into the MS Updates to reinstall any patches or hot fixes.  The repair takes about 1 hr, and the reinstalls of fixes/patches about another 30 minutes.
657400
Ring Microsoft.  They are very helpful.  You still need the product code which is either a sticker on your computer or on a box you bought Windows XP on.  You don't need to register with Microsoft but you do need to Activate the operating system after a reinstall or repair.  If you think you have a dodgy copy of Windows, go out and buy a student version which will be fairly cheap and use that product code.  It must be the same type ether home or professional.\n\nNote: It really isn't worth cracking or using a pirated version because every time you update the patches or have to do a reinstall you will meet this issue again.