Welcome back to Tech18.com, Here is a simple trick to activate windows without any product key 
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When you have installed windows xp and try to activate you get messages like “your product key is not genuine or the number of activation has been exceeded” and then it tells you to call MIcrosoft to get the key, Instead of Going to this trouble, or instead of spending Hundred of dollars, to get a new genuine product, let us solve this problem by following way:
STEPS:-
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Click on Start
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Find and Click “Run”
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Type regedit
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Click the plus next to “HKEY_LOCAL_MACHINE”
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Click the plus next to “SOFTWARE”
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Click the plus next to “Microsoft”
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Click the plus next to “Windows NT”
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Click the plus next to “CurrentVersion”
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Click “WPAEvents”
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On the right panel, find “OOBETimer” then double click it.
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Now, Delete all the Values by highlighting it, then delete it
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Then type in this value without the quotation mark “FF D5 71 D6 8B 6A 8D 6F D5 33 93 FD”
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Then after that click OK,
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Then on the left panel right click WPAEvents, then click on permissions
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Then click System or SYSTEM, then Deny Full Control, then Click OK.
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Then Exit Registry Editor by Click the X or the red X on the Upper Right of the Title Bar or press ALT and F4 at the same time.
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To Very that it works, go to start, then “activate windows”, or go to start, then all programs, then “activate windows”
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If it says that Windows has been activated.
gupshupblog (1)
wow that’s great!! i dont suppose there are any tips for activating the trial version of photoshop cs4?
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Thank you, works perfectly !
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This is a cool trick! Thanks a lot
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Thanks for all it was gr8888888!!!
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This is flippin’ awesome. Easy, simple and free. Hack the planet!!!
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It works great
i was worrying after installation of windows that how will i register my window. Luckily i went through your blog and get very useful information. Rock On !
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YEAH
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Thanks. You directions were so easy to follow and the whole thing took not even a minute. Would love to learn more of your tricks.
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I followed the instructions, but i did it in safe mode because windows had already timed out and I couldn’t get on. Now when I try to log on in normal mode, it tells me windows has been activated and then it logs me out!!
any help?
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i can’t find (activate windows)…..but i did all the other steps…
i click on deny full control but it highlights the others too….please help me…i feel completely lost ;(;(;(
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thanks a lot, It’s was very helpful.
For MARIAM, How to follow this
* Click on START
* Click Run… Then type
%systemroot%\system32\oobe\msoobe.exe /a
**after .exe (press spacebar ;P)
credit to Mr.Tee
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Hi, this seems like a great guide, but would you mind giving a bit of an explanation of what each step actually means and does for the more techie and curious readers?
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wow! you’re so great! it worked fine!!! really fine. that was awesome!!! I’ve manage to search all the different ideas on how to work on this problem but it was only your idea who succeeded on this problem. thank you very much!!! ^_^ i love you!
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hallelujah!!! PRAISE the LORD!!!
thank you so much dll007… ^_^ keep it up!
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It it is possible can you make some explanation ->I every time see warning “you need activate” then I press “Yes” and I see “Windows is already activated” but then I come back to login page
! So it goes again and again, any solution?
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I spend hours trying to fix this problem. Your fix allowed me to activate in a couple of minutes. Thank you very much!
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I followed the instructions, but i did it in safe mode because windows had already timed out and I couldn’t get on. Now when I try to log on in normal mode, it tells me windows has been activated and then it logs me out & this happens over and over again!!
any help?
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I tried your trick to activate windows. It worked. But still I am getting
the activation reminder but when click on that it says it is activated.
Why this reminder pops up????
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I followed step by step and it did work! BUT after 30 days, Windows Asked me again for registration, and this time don’t let me log on.
What happened?
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i did everything…..but where is the activate windows button…..?…i dont find it anywhere……not in the all programs too…..:(
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perfect, thank v much
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“I followed step by step and it did work! BUT after 30 days, Windows Asked me again for registration, and this time don’t let me log on.
What happened?”
Probably means that Microsoft has found out about this trick….
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To Tom, Lauren, Dake
This may fix your problem. Replace WINLOGON.EXE in System32 folder with a another user’s winlogon.exe. Do it in Safe mode and check it in Normal mode.
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Udara –> that doesn’t seem to work…
My windows started saying i have 7 days soon 6 days to activate. But when i press activate it says windows is already activated!?
Will I have a problem in 6-7 days?
Can i kick the reminder somehow?
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This caused an infinite loop for me, saying id activated and then asking me to update before logging in… urg
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It works…
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It worked!!!!!! I know, everybody writes that, but what can I say. THanks dil007, whatever, nice piece of work!
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Thank you very much! you rock!
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OMG! That’s amazing! Thank you so much!
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Awesome!!! Your Directions Were GREAT!!!
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Bless you!!! You’re a godsend!!
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Works perfectly!!! thanks so much!!!
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this didn’t work now windows wont even boot, it gets to the cursor then restarts itself!
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i get into the loop, when i am asked to activate, then i press ok, and it shows that windows are activated and logs off. any ideas?
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Thanks That really Works!!!!!!!!!!!!!!!
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I have done everything up to clicking Start, All Programs, but where does it say Activate Windows? Do I have to click on something after All Programs? Damnit, I have to be able to do this, because the Activation Part is pissing me off.
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Hey, I cant find the “OOBETimer” in WPA events….
can somebody help me..?
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@ jack
are you sure its not there just look carefuly
and mind it this is for windows xp only
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Many thanks for that — I had already spent 175 euros on replacement machine and couldn’t afford another 140 for a new product key.
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man you are so ……. i don’t know wat i’m gonna say dis da 1st time i’m speachless
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Hi all..may i know how to change product key for Windows Xp thats already activated..
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“i get into the loop, when i am asked to activate, then i press ok, and it shows that windows are activated and logs off”
This same happen to me too…Any solution?
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Works perfectly,Your Directions Were !GREAT! Easy and simple;Thanks,Thanks.
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THANK YOU SO MUCH!!!!!!
I COULD KISS YOU RIGHT NOW! 
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Sunil Jain Reply:
May 4th, 2009 at 12:35 am
no kiss required from you dude,just be visiting this site and tell your friends also
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PROUD TO BE INDIAN Reply:
January 12th, 2010 at 12:37 pm
aS ALWAYS INDIANS ARE JAI HIND
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To Tom:
Thank You Very Much….I’m impressed that u r such a genius….thank u, it’s working….
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You’re the man!
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thank you so much…its working.i’ve activate my windows without using any of product key….you such a genuis
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yo that was cool
really thanx
i activated windows now
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thank you so much i needed to activate this so bad you rule thank you =)
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