Hi,

Just to follow up, I did try zapping the PRAM, but that did not help.

If the boot disk is set to Windows, I can only successfully boot one time; all 
subsequent reboots fail. The only work around that I have found is to use the 
option key to boot into MacOSX, switch the boot disk from Windows to MacOSX, 
and then switch the boot disk back to Windows. Then I can successfully boot 
into Windows (but only once before having to do the work around again).

As you suggested, it is certainly possible that there is a problem with my 
installation of Windows. And, if there is, it may well be something that I 
messed up. However, once booted into Windows, all seems fine (as far as this 
Windows newbie can tell).

I had been using Windows 7, but yesterday I bought Windows 10, so I might try 
re-installing Bootcamp and Windows 10.

Thanks for the help.

Gregg

-----Original Message-----
From: Macs R We <[email protected]>
Date: Tuesday, January 2, 2018 at 1:37 PM
To: "Dinse, Gregg (NIH/NIEHS) [C]" <[email protected]>
Cc: Mac OS X-Talk <[email protected]>
Subject: Re: BootCamp troubles

> On Jan 2, 2018, at 10:36 AM, Dinse, Gregg (NIH/NIEHS) [C] 
> <[email protected]> wrote:
> 
> My complaint is that although the MacPro tries to boot into Windows, it seems 
> to get stuck before Windows finishes booting. At that point, I power down and 
> use the option key to boot into MacOS. The only way I found to successfully 
> boot into Windows is to first boot into MacOS and then switch the boot disk 
> to Windows. And this only works for one boot cycle -- if I try to reboot into 
> Windows again, it hangs.

At the risk of committing a Redmond Heresy, consider that the problem may be in 
your installation of Windows. But I would try zapping the pram first.

> Maybe I'll try zapping the PRAM. Is that still command-option-P-R? What do I 
> lose by doing this? Do I lose a lot of settings and/or preferences?

I’ve never lost anything that I noticed losing, other than the stored boot 
device, which in this case is the point. In the old days it would lose your 
clock setting until you manually reset it, and it still resets that, but today 
it’s all set over the network anyway, so you don’t even notice that.


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