Isn’t it frustrating to reinstall all your favorite and perfectly working applications after upgrading or installing an OS on your PC?
Reports confirm that it took more than 20 hrs to upgrade Windows 7 on a machine of 650 GB data and 40 applications in a mid end hardware configuration and in case of high end hardware it takes around 10 hours. However, you can have a clean install with no application in 30 minutes in a high end hardware and 50 minutes in case of low end hardware (further analysis here). So, if you really want to install Window 7 quick and fast, first you need to uninstall all your applications and store it in some place, then install Windows 7 and then probably you can go about reinstalling all your applications one by one. That looks like a tedious job.
In Windows Digital Lifestyle Consortium in Japan last year Gates talked about the performance of Windows 7 and suggested that it will take less memory and will be more efficient. More than one and half year has passed and after all the regression testing this is something that comes out on the up gradation of windows 7 on a high end hardware configuration.
Data profile
Mid End Hardware
High End Hardware
650Gb of data and 40 applications
32-bit: 1220 minutes
64-bit: 675 minutes
32-bit: 610 minutes
64-bit: 480 minutes
Just think about the low end hardware user, how much time will it take to install windows 7 in their system? My wild guess says around 2 days (just kidding). Microsoft has already confused users by giving phantom promises on the efficiency and performance of Vista over XP in past. Just more than a month left before the official release of Windows 7 on October 22nd. Lets hope it doesn’t disappoints us again like Vista.
Follow-Up
Arstechnica : Microsoft: Windows 7 upgrade can take nearly a day by Emil Protalinski
Msblog : Gates: Windows 7 will “take less memory, be more efficient”
Gizmodo : Worst Case Scenario: Windows 7 Upgrade Can Take 21 Hours by Dan Nosowitz
CrunchGear : Windows 7 upgrade time tops out at 20+ hours by Doug Aamoth
Image Credit : Support On Click
Table Source: ArsTechnica
Data profile
Mid End Hardware
High End Hardware
650Gb of data and 40 applications
32-bit: 1220 minutes
64-bit: 675 minutes
32-bit: 610 minutes
64-bit: 480 minutes
Follow-Up








September 15th, 2009 at 11:05 am
Give me a break! "Upgrade To Windows 7 Might Take 20+ Hours (Worst Case)" http://bit.ly/a9LEG
October 16th, 2009 at 2:42 am
[...] 80% of PC users are still using Windows XP and upgrading from XP to Windows 7 is a arduous and punishing [...]