Reinstallation of Win 7 on the same computer laptop-is the product key is still necessary?

Dear Sirs,

My computer dell laptop is running win7 Home premium.  I installed it a few years after purchasing a win 7 dvd.  I think reinstalling the same win 7 Home premium on the same laptop (no change in the hardware of the laptop), just to speed up my laptop and delete all unnecessary files accumulated over the years.  My question is, does the product key is necessary to put in during the re installation process or not. In other words, I have to re validate windows after installation. Of course, I have to do a custom or fees installed, so that all the old files have disappeared.

Grateful for a quick response.

Rabbi

You have not enter the product key during the installation, you can skip to enter the product key and ensure that everything is working correctly before turning back again:

How to install Windows 7 without entering your product key.

Make sure you take your key to the system if you don't have it right now:

Here are four utilities, which can display your product keys if they are still there:
Belarc Advisor: http://www.belarc.com/free_download.html
(He did a good job of providing a wealth of information.)

Also: http://www.magicaljellybean.com/keyfinder.shtml
and: http://www.nirsoft.net/utils/product_cd_key_viewer.html
and RockXP: http://www.majorgeeks.com/download4138.html which has additional features

Once you have the installer, you can try to activate online or by phone:

Activation of the Internet:

Press Windows key + R

Type: slui.exe 3

Press enter

Enter the product key and click next to activate via the Internet.

Activation of the phone:

How to activate Windows 7 manually (activate by phone)
 
1) click Start and in the search for box type: slui.exe 4
 
(2) press the ENTER"" key.
 
(3) select your "country" in the list.
 
(4) choose the option "activate phone".
 
(5) stay on the phone (do not select/press all options) and wait for a person to help you with the activation.
 
(6) explain your problem clearly to the support person.
 
http://support.Microsoft.com/kb/950929/en-us

Resources:

http://notebooks.com/2011/02/15/how-to-reinstall-Windows-7-from-scratch-an-effective-method-for-a-clean-install/

Tags: Windows

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