Dual Booting All discussion on Dual Booting 2 operating systems (or even more!) on the Dell Mini

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mypup mypup is offline
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Default Time fix for dual booters OSX & XP - 10-27-2009, 01:48 AM

On a Hackintosh when switching between Leopard and Windows XP? There is always a 4 hour clock difference. Example: change the time in Windows, switch to Leopard, and there is a 4 hour difference. Now, change the time in Leopard, switch to XP and there is a 4 hour difference.

Its not a bug, its that windows and osx use two different ways of measuring time (UTC and something else, cant remember) . The same thing happens when dual-booting linux and windows unless you tell linux to do it differently. Windows uses local time for the clock as opposed to UTC

Ok enough chat here is how to fix it.

Create a reg file for windows and put this in it.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\TimeZoneInformation]

You will need to reboot windows for the change to take. This will work for Leopard and Snow Leopard also works for me on a Linux/XP box. Not sure about Vista or 7 dont use em so I cant say. But this works for my mini 9 with XP Pro / Snow Leopard

This was bugging that crap out of me hope that it helps someone else who dual boots.

Dell Mini 9 | 32GB SSD Runcore | 2GB RAM | 1.3 mp WebCam | OS X 10.6.2 | USB Wake Off | Legacy Support Off | Bluetooth Module On | A05 bios | NBI 0.8.3RC3 | Geekbench 2 Score 985 |  Mac Pro 2008 | 2 X 2.8 GHz Quad Core 45-nm Intel Xeon E5462 (Harpertown/Penryn) processors | 16GB 800 MHz DDR2 Ram | ATI Radeon HD 2600 XT 256 MB GDDR3 | Geekbench 2 Score 12296 |  MacBook Pro 13" (Mid 2009) | 2.53GHz Intel Core 2 Duo P8700 4GB 1066MHz | Geekbench 2 Score 3907 | http://tinyurl.com/y9gu2f7
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TheAAPLFreak TheAAPLFreak is offline
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Default 10-28-2009, 04:21 PM

Finally!! That was driving me crazy. Since I primarily use OS X on my 10v, I normally keep that on normal time, but every time I use Windoze, I try to change it. This will help so much.
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k770 k770 is offline
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Default 11-19-2009, 03:58 AM

Just fyi, appears to work flawlessly on Windows 7 x64 also. Thanx.
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k770 k770 is offline
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Default 11-21-2009, 07:21 AM

Maybe not, this appears to cause a problem on Windows 7 which I would not have guessed to be related but is now affecting me:
ACPI Lid wakes computer every 3 minutes - Windows 7 Forums
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tiguy99 tiguy99 is offline
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Default 11-22-2009, 12:08 AM

WTF....I thought it was only me lol

Only my times are off by 6 hours...in fact I set my Windows 7 clock earlier now my OSX clock says its 12:10 PM lol

Is there a script out there we can run that'll do the dirty work for us?

- Macbook Mini (10v) - OS X 10.6.2 - 250gb HDD - 2GB Ram - Dual Boot Snow Leopard/Windows 7 Ultimate -
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