Dual boot win 10 and 7 separate hard drives delay and repost

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sgobob

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On initial boot, post screen appears twice and boot screens for either OS appear twice sequentially. On restart from either OS, there is precisely a one minute "dead" period before post screen appears. I purchased the HP 8200 Elite from another user who installed the OS's and hard drives, but is unable to help with this problem.New-Win-10.jpg composite-11-06-16.jpg
 

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Allan
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Assuming it's using the Windows 10 style boot up what you're seeing is normal if you try to boot 7 from the 'which OS' screen for 10 - it will reboot to start 7. Does that explain your whole problem ?
 

dmccoy

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Do you want to run a dual boot system? Go to start and type msconfig. Open the system utility and go to the boot tab. On the boot tab it will show a selection of operating systems and you can delete the one/s that are not correct. You can supply a screenshot if you have questions.
 

sgobob

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Unfortunately, this doesn't answer the problem. There is a repeat of the post screens, and the logon screens from whatever OS I boot from in the OS boot choices - this is especially notable if I choose to boot to win 10 and, if I restart from either 7 or 10 there is that one minute dead zone with blank screen and no HD activity before post even appears. Since this problem appears from a cold boot, I think there is an issue with BIOS and/or the drive partitions? Why is SATA 1 listed under CD-ROM - shouldn't SATA 2 actually be 1?

2.jpg
 

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Allan
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The Sata number doesn't matter in this case, it's not like IDE when you had master & slave.
 

sgobob

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Then what causes the one minute dead period only when restarting from either OS and not cold boot?
 

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Allan
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Then what causes the one minute dead period only when restarting from either OS and not cold boot?
I can't answer that yet but can you explain how you choose which OS to run from a cold boot ?

So far I think you're saying you see the POST screen twice. What is on the 2 screens and are they identical ?

Then you see the 2 boot choice screens one after the other, the text one for 7 and the coloured one for 10, what order are they in ?
 

sgobob

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Using legacy boot menu in win 10 so no graphical interface, with win7 as default, but makes no difference which OS is designated as default since I already tried that. Win 10 is on top, and 7 is checked. The boot choice screen does NOT appear twice, just the initial post screens and subsequent OS splash screens.

Yes, the two post screens are identical, with the first having a short timeout and the second having the timeout I specified. If I select 10 from the boot menu, the win 10 logo starts and runs for about 30 seconds then repeats until the program actually starts.
 

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Allan
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I didn't know you could have Post screens with a timeout. What sort of information is on the screens ?
 
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