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Thread: GA-P55-UD4 & Windows 7 hangs 'Loading Operating System' 1st Boot




  1. #1
    Join Date
    Apr 2004
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    Default GA-P55-UD4 & Windows 7 hangs 'Loading Operating System' 1st Boot

    Hello All, iv been trying to install Windows 7 64 bit on my pc but i havent been able to do because it hangs on the 'Loading Operating System' (same thing happends with win 7 32 bit) on the 1st boot of instalation.

    System is not overclocked, and i have fiddled arround abit with the de ide, achi.. options.. but nothing. How ever i have been able to install Windows 32 bit with a workaround, but it didnt work with the 64 bit :(. And i would like to work with the 64 Bit.

    here is as goes

    Fresh Install on a HD Windows 7. 32 bits .-> result: hangs 'Loading Operating System' screen
    Fresh Install on a HD Windows 7. 64 bits .-> result: hangs 'Loading Operating System' screen

    From windows XP 32 Bit I install Windows 7. 32 bits .-> result: works perfectly
    From windows XP 64 Bit I install Windows 7. 64 bits .->result: hangs 'Loading Operating System' screen


    (btw its impossible to install win7 64 bit from win xp 32 bit)

    Now, from iv read people have said it can be anything... most likely power supply, but that i cannot test. in any case.. i thinki that would be very unprobable since the 32 bit installation worked (ok with a work around, but it worked..)

    Most problable issue, is drivers? may be dunno?

    any ideas?

    cheers!
    i5-750
    GA-P55-UD4
    HD 4870 TOXIC
    12 GB DDR3-1333
    Cool Master Silent Pro M 600 W
    Win 7 64 Bit

  2. #2
    Acebmxer's Avatar
    Acebmxer is offline Gigabyte Elite
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    Default Re: GA-P55-UD4 & Windows 7 hangs 'Loading Operating System' 1st Boot

    Make sure your boot order set to hdd first then cd. Also make sure the hdd that you are installing windows is the first hdd to try and boot from.
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  3. #3
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    Default Re: GA-P55-UD4 & Windows 7 hangs 'Loading Operating System' 1st Boot

    Disable all floppy drives and drive A from the bios,even if you have no floppy drives installed,then try installing win7 64bit
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  4. #4
    Join Date
    Apr 2004
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    Default Re: GA-P55-UD4 & Windows 7 hangs 'Loading Operating System' 1st Boot

    the order of booting is correct and, floopy doesnt apear.

    mm in any case, i was able to finally install win 7 64 on a fully updated and working windows xp 64 bit.

    The reason for which it not working earlyier on was becasue win XP 64 was a fresh install... i suppuse it didnt have all the drivers..


    funyy though i remember in the past having to install windows 2000 and xp using a win 98 disk... now to install win 7 i need a fully work OS installed... :(

    cheers for the thoughts though!
    i5-750
    GA-P55-UD4
    HD 4870 TOXIC
    12 GB DDR3-1333
    Cool Master Silent Pro M 600 W
    Win 7 64 Bit

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