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On a machine with Intel Core-i5 or i7 and a standard HDD, how long should an installation of Windows 7 64 bit roughly take? I'm after a rough estimate because my installation seems to be running quite slowly (previously, I've installed Win7 32bit on a laptop and it went much quicker but maybe there are differences between 32 and 64 bit editions).

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Mine took less than an hour, but I don't know the exact time because I didn't care to stay in the room the whole time. –  mmyers Mar 12 '10 at 19:54
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In the end, my installation took about 40 minutes (Core i7, decent SSD, 8GB RAM) so it was probably pretty normal. I was little bit worried at first because the beginning was "weird" - long waiting on screens that didn't provide much feedback of what was going on. –  Borek Mar 12 '10 at 20:25
    
I also have the long waiting screens. It happened with Vista too. It's only been on computers I have built myself, OEM hardware seems to start off fine. I think it's Windows trying to find drivers. –  ta.speot.is Mar 12 '10 at 22:23
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Not nearly as long as it takes to load all the updates. –  Daniel R Hicks Aug 6 '13 at 2:46
    
It usually takes me around an hour to get a booting Windows 7 system with the basic drivers installed. It then takes at least another day installing updates and service packs. –  Majenko Jun 14 at 12:42
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Depends on hardware, remember CPU isn't the only performance factor :)

With decent hardware though, it shouldn't take any longer than 30 - 35 minutes.

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about half an hour seems pretty normal, bit longer maybe :) –  S.Hoekstra Mar 12 '10 at 20:05
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I normally allow a full business day for an operating system re-install. Remember, it's not the system install itself that takes so long; it's all the patches and applications you install after the operating system. Windows 7 isn't that old and so there aren't quite as many patches yet, so you might be able to do it in a little less time.

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Agreed. I'd also add all of the other applications that need to be installed and updated: Office, AntiVirus, Acrobat, etc.. Then you can't forget restoring settings and data from the machine the user previously used. –  PaulWaldman Mar 12 '10 at 22:27
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Mine on an older laptop (P4 dual core/5200RPM ATA hard drive/2GB ram) took just about an hour. So it can vary largely based on hardware.

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hard drive is by far the biggest factor, so the 5200rpm drive (are you sure it's not 5400?) really killed you. –  Joel Coehoorn Mar 12 '10 at 22:19
    
It might even be 4200... –  ta.speot.is Mar 12 '10 at 22:31
    
Whoops, brain fart... yea, it was a 5400 –  BBlake Mar 15 '10 at 12:06
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Those times are accurate for a laptop but I have seen desktops take as many 14 to 16 hours with the Vista partition.

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