Question about eMachines etower 533ir PC Desktop

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I used a shredder program to clean out my emachine and now the

Product number for windows claims it is an invalid number

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  • Thomas F. Schneider May 11, 2010

    Have you tried restoring to an earlier date? If you have the windows disk you can just reinstall. 



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Presumably Windows needs to be reactivated. That is why you are getting the prompt. Windows has an approximate of 3 windows activations, which will automatically go through via the internet. If any hardware changes are detected in the computer, this changes the ID codes in the computer. Follow the telephone prompts for activation. Solution is activate over the telephone rather then the internet. The correct windows license code is on the rear of the computer.

Posted on Jan 16, 2009


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How to fix my product information programmed into the system board is missing or invalid when i start up the computer? my serial number says it null

Serial number is written on a plate on the bottom of the computer along with the model number. If not consult with the manufacturer, if you reported the guarantee at the time of purchase.

Oct 14, 2014 | Computers & Internet

1 Answer

What is my registration number

A Registration number is when the computer is registered.
Registered with Microsoft, or perhaps eMachines; for example.

To me an erroneous procedure, as it just gives them Personal information about you, which they DID NOT have, and DO NOT need..........

"Oh get great information about Windblows, or use eMachines (Insert any computer maker here), helpful tech information...."

UH, NOT.........
Nothing good comes from it.......

For a computer that is Not registered, it is just Activated.
The Windows program is Activated.
This requires using the Windows Product Key, which is found on the Back of the computer, or up on the side of the computer tower.

Let these X's represent letters, and numbers.
The Windows product key is 25 characters long,


For additional questions please post in a Comment.
Or click on Reply at end of solution, and post.


May 12, 2013 | eMachines EL1360G-UW11P Desktop PC

1 Answer

Invalid System Board

Open the BIOS, is the time correct? Consider replacing the CMOS battery. You didn't mention the Make , Model of computer or the OS.

Jan 04, 2013 | Computers & Internet

1 Answer

Product key invalid

call Microsoft. You will need model and serial number and date of purchase

May 03, 2010 | eMachines ET1641-02w (PT.NA60X.001) PC...

2 Answers

Invalid product key

no way except to buy a new CD of both products from market.

Feb 23, 2009 | Microsoft Office PowerPoint Home and...

1 Answer

I used a shredder program to clean out my emachine and now the

Download Perfect Uninstaller, the latest version cab be easily found on

Jan 15, 2009 | Computers & Internet

1 Answer

I used a shredder on my hardrive and I put in the windows 98 number in the registration page and it keeps coming back as an invalid registration number

Are you sure this is a valid number? I mean check the numbers especially for zero and the letter O. They will usually try to put a line through the zero to distinguish it from the letter. Let me know if this works.

Jan 14, 2009 | Computers & Internet

1 Answer

Product key

Do you mean the Windows Product Key? Does the label have OEM printed on it? If so then you cannot activate Windows using the product key - you will have to phone MS and explain the situation. If you have the original emachine WIndows Recovery CD then use that to re-install the OS. If you don't then you need to ring MS and ask for an activation key. When you try to activate Windows it should give you the number to ring (depends on what country you are in).

Nov 09, 2008 | E-Machines eMachines Desktop PC

1 Answer

Sticky Shredder

The blades will have to be cleaned of the adhesive residue. A stiff bristled paint brush, toothbrush or brush that can get around and on the blades should work. Make shure that you disconnect the shedder from power prior to doing any kind of cleaning. You will need some kind of adhesive removal spray. I use WD-40 or Goo Gone (both fairly common and cheap) to remove the adhesives. There are a number of other products available (some more expensive than others and all claim to work best)and then there are some you wouldn't expect(like vinegar.) Be sparing in your application of remover and try to apply the cleaner only to the brush. The object is to clean the blades and try not to get clean all in and on the shredder. You should either try Q tips or some other absorbent swab to dry and remove as much liquid cleaner as you can. Hope this helps

Nov 15, 2006 | Fellowes (97844) (C77797)

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