Fix Invalid Key Error In Microsoft Office  

After installing the Office 2003 or 2007 suite, you will likely need to enter a product key. If an error message is displayed after you attempt to start the Office 2003 or 2007 application, you will need to fix invalid key error.

To elaborate:   

You may receive the following error message after you provide the key: 

“  You have not entered a valid product key. 

Please check the number located on the sticker on the back of the CD case or on your Certificate of Authenticity.” 

At times, you may face problems while activating these products. The activation process may freeze and display the following error message:  

“  Please wait while activation wizard initializes. ”    

In order to fix invalid key error, you first need to know the possible causes. The errors listed above may occur under the following circumstances: 

·          Another version of Office 2003 or 2007 suite or individual application is installed on the PC.  

·          A trial version of the Office you are trying to install is already on your PC. Many preinstalled computers come with these trial versions.  

·          You have never previously started any of these programs on your computer.  

Let us now see how you can fix invalid key error and make your Office applications accessible. 

1.       Open Start menu, select Run, type appwiz.cpl and then click the OK button to start the Add or Remove Programs utility.  

2.       In the Currently installed programs list, search for all Office installations.  

Here, you must uninstall any prior installation of the Office suite and individual Office programs.  

3.       Select each product one-by-one and select Remove to start the uninstall wizard.  

4.       Follow the uninstall wizard to complete the removal process.  

To ensure complete removal of the programs, it is recommended that you use a good registry cleaner tool to scan and remove any left behind entries of the removed programs. 

5.       Restart your PC. Restarting helps in clearing any information that could not be removed when the PC was functional.  

Next, you need to reinstall the Office suite you want to use. 

6.       Insert Office setup disk in your CD/DVD drive.  

7.       Use the installation wizard that is displayed to choose the required options and then proceed to install them on your PC. 

8.       When prompted provide the product key for your Office. 

When you start any of your Office applications, you will be asked to activate Office.  

9.       Follow the steps listed to activate Office and then start using it without any invalid error.  

Many Windows errors occur when you fail to perform the proper maintenance on your computer. For instance, it is essential for you to regularly update the antivirus and antispyware tools and schedule them to run at least once a week to perform a full system scan and clean up any infections on your system.

Another useful tool is the registry cleaner tool. You can easily set it up to regularly get rid of any junk keys accumulated within the registry so that your computer remains operating at a high performance level. It is also a good idea to regularly use the Disk Cleanup and Disk Defragmenter tools to perform regular hard disk maintenance and further improve the performance of your computer. A good registry cleaner can automatically perform all of these valuable functions and keep your PC in good health for a long time.  

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