Install Windows 7 Pro the Dell laptop w / OEM Windows 7 Home Premium

I have a bit of a MESS! Bought a Dell Latitude Laptop online, which was supposed to have Windows 7 Pro.  When receipt he did 7 Home Premium. Found I had problems with some XP programs running and finished by the seller to send me a genuine disc "Réinstallation DVD Windows 7 Pro SP1 64-bit," Dell and a key COST and product.  My concern - since they are BOTH the OEM versions of the operating system and a new drive a "Reinstall" rather than an "upgrade" - is that going to reformat my hard drive and destroy all my drivers and the factory pre-installed programs?  Dell installs a number of vital programs to run the webcam, diagnostics, audio, secure data backup, etc., and all necessary hardware drivers, but they do not send copies of disc.  How to backup all this?  And then, everything I need to copy from the system to be able to reinstall the programs?  Seems an almost impossible process... A drive to "Reinstall" OEM gives you an option to simply replace the operating system and everything still leave it alone?  I certainly don't want to start without knowing what I am getting into.

Would appreciate certainly no help...


Thanks for your quick response. I'm a little nervous because of all the issues that I had with this laptop - then just one last question for confirmation - if I buy a key to upgrade to 7 Pro AND use the Express Upgrade Wizard, it WILL NOT reformat my hard drive?

That's right, see how it works:

When I am in fact, drivers for all my hardware and programs installed and my data will always be there and accessible under the new OS? Thank you. Nancy

That is right.

Tags: Windows

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