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How to repair Windows Xp Professional
installation using upgrade option
(start installation from OS)
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Why a repair installation of Windows Xp Professional using upgrade option?

An in-place upgrade is also named a repair installation because you upgrade your system to the same
operating system. In-place upgrade should be used in cases when the system files are too damaged or
the system is too infected and no security software can run in order to disinfect it.

The purpose of the article is to show how a in-place upgrade of Windows Xp Professional goes when you
start installation from your Operating System.

The advantage of an in-place upgrade is that you can keep all your user account file, settings and installed
programs like they were.This is a very easy and quick way to fix your system and you can start it from your
operating system.
You can start In-place upgrade from the operating system.
Press Install Windows Xp to begin   
On Installation Type select Upgrade (Recommended) and press Next.  
Check I accept the license terms and press Next.  
Enter Your Product Key then press Next to continue.
Note: Only with  Windows Xp Professional Service Pack 3 you can leave it blank press Next and register
your product later.
Press No to continue.  
Select No, skip this step and continue installing Windows then press Next.  
Windows repair will continue after restart.  
If previously in bios you selected that your CD/DVD/RW to be your first boot device you will be prompted to
press any key to begin the installation.
Do not press any key because you will start another installation, just wait the installation to continue.
If previously in bios you selected that your CD/DVD/RW to be your first boot device you will be prompted to
press any key to begin the installation.
Do not press any key because you will start another installation, just wait the installation to continue.
If previously in bios you selected that your CD/DVD/RW to be your first boot device you will be prompted to
press any key to begin the installation.
Do not press any key because you will start another installation, just wait the installation to continue.
Press Next to continue.  
Select No, remind me every few days then press Next.  
Press Finish to complete repair.  
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