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Performance Difference Between Windows 7 Clean Install And Upgrade Install


Does anyone know whether there is a difference in performance between doing a clean install of Windows 7 vs upgrading Vista? Any better stability? I'm just wondering whether it's worth the trouble of the clean install.


View Replies (Posted: 02-03-2010 at 11:01:25 PM)

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Related Forum Messages for Windows 7:
Windows 7 Upgrade - Clean Install
The Windows 7 Full Versions are for those users who wish to install the OS on a blank (or newly purchased) formatted HD who has NEVER owned a license for XP or Vista. That is all it is meant for, black and white.

The Windows 7 Upgrade Versions are for those users who already own a previous license for XP or Vista OS, and is based upon a trust system that you do, in-fact, OWN a valid license. In the future, Microsoft could eventually come out with a patch to validate your Upgraded version of Windows 7 by asking for the previous OS disk and/or key for validity. So do not toss away your old disks or key information. The recommended way to Upgrade to Windows 7, from XP or Vista, is to launch the DVD from within the current OS and follow the dialog boxes to install Windows 7. So basically, the Upgrade does NOT ask for a previous Windows disk, nor a previous license key, nor does it check online to make sure the key is even valid.

If you are running a 32bit OS and upgrading to Windows 7 32bit, you can do the normal Upgrade method which will place your old OS into a folder that you can delete later. However, I would recommend re-booting the computer with the DVD in the drive to lauch the setup. Just make sure you have backed up your personal data elsewhere before doing so, preferably using Windows Easy Transfer at

http://windows.microsoft.com/en-us/windows7/products/features/windows-easy-transfer

Also, during the installation, Windows 7 puts a 100mb partition for system management, used by Windows 7 Ultimate, Business and Enterprise. Even if you are not installing those OS's, you will still get the partition... but it doesn't hurt anything, I would just leave it to be safe. It is assumed that it is there for the other OS's to load Windows 7. So, if you remove it, you could have issues down the road. However, if you wish to not have it, as well as more information about this, head over to this link of how to do it, prior to installing.

http://www.mydigitallife.info/2009/08/20/hack-to-remove-100-mb-system-reserved-partition-when-installing-windows-7/

Read more at the forum...

Posted: Friday, October 23, 2009 5:20 PM

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What Would Be Better? An Upgrade To Windows 7 Or A Clean Install ?
I have a 64 bit HP DV7 laptop with Vista 64 bit installed

What would be better? an upgrade to windows 7 or a clean install, I heard that a clean install will really run a lot better, what are the differences if any?

Posted: 4 Weeks Ago

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Clean Install With Windows 7 Upgrade
I bought Windows 7 Home Premium from Digital River, where it is discounted to $30 for university students. It is the upgrade version. I bought it because to my understanding we were able to do a clean install of Windows and a complete reformat. I ordered the disc but it allowed me to download it so I thought I'd just download it now and get it done with while I had time. I started the installation after a BIOS update that was required and it started hte install.

I clicked custom install and selected the old partition to which Windows Vista was installed thinking it was going to delete everything, but it said it was going to move everything to Windows.old, thought i was odd, but went along with it cause I was simultaneously doing homework and was impatient and figured maybe it would delete everything after it got started.

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How will it work? I'm hoping that I wasn't given the option to do a clean install because I downloaded the file and the file was being run from my Windows Vista desktop.

Posted: Thursday, October 22, 2009 8:29 AM

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Clean Install Of Windows 7 Upgrade
I'm a tad uneasy after reading some posts on making a clean install. I have ordered the Home Premium 7 upgrade, presently I have OEM (Legal) 64 bit Vista Ultimate and this requires a clean install.

Vista is installed with RAID 1. Do I leave Vista on the discs to show that an upgrade is okay? Will 7 then format my RAID 1 discs? I had planned to format the discs before hand but now it appears that I can't do that, or can I, if Windows 7 asks for the Vista disc for proof for an upgrade?

Posted: Thursday, October 08, 2009 4:01 PM

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Now I will need to activate it at some point and have just come across the forum and your excellent tutorials, now you have linked to Paul Thurrott's guide and he mentions a double install method which is supported by Microsoft. I would prefer this route as it looks easy, and less likely that I will do it wrong. My main questions are when I installed Windows 7 I stupidly clicked the Activate Online thing. Will double install or any of the other methods still work? Will the double install lose all my upgrades I have had to make to get all my devices working?

not to bothered but would prefer this not to happen as it took me 3 days to do my drivers and various other installs to get back to being able to run fully. Anyway so far I am very impressed by Windows 7 and well Vista will never be used again and once I have this little issue sorted I may well be getting rid of vista of my other HDD.

Just one final question how much RAM can I install now that I am running Windows 7 64 bit, I currently have 2gb (1gb per channel for processor). I know what type to get but what is the Maximum it will take for the OS. Anyway I know it is Christmas and not to fussed if I get a reply tonight or tomorrow, I hope some one can help me. Finally I would like to wish everyone a Merry Christmas.

Posted: 2 Weeks Ago

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Clean Windows 7 Install With Upgrade Media
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Posted: Friday, October 23, 2009 1:27 AM

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Can The Windows 7 Upgrade Perform A Clean Install ?
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Posted: 10-21-2009

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Change Windows Status From Upgrade To Clean Install
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Posted: Wednesday, October 14, 2009 1:46 PM

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Posted: Wednesday, July 15, 2009 8:13 PM

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Install Time Difference Between Upgrade And Custom
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Posted: Monday, January 19, 2009 6:32 PM

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Edit: I've ran the Windows 7 Upgrade Advisor and everything seems ok.

Posted: 10-23-2009

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