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 PostPost subject: Install Longhorn 4051 x64 without changing BIOS        Posted: Mon Jun 29, 2009 7:18 am 
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Is it possible to install 4051 x64 without changing the BIOS date? Like if there is a patch I can put in the ISO to stop the check because I would like to test this build on my x64 PC that I use everyday (I know its dangerous, idc though), and I don't want to have to change the date.


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 PostPost subject: Re: Install Longhorn 4051 x64 without changing BIOS        Posted: Mon Jun 29, 2009 7:26 am 
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You could modify the iso, (repack the .dl_ files which are actually .cabs).


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 PostPost subject: Re: Install Longhorn 4051 x64 without changing BIOS        Posted: Mon Jun 29, 2009 7:31 pm 
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In a word; no. It's not possible.


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 PostPost subject: Re: Install Longhorn 4051 x64 without changing BIOS        Posted: Tue Jun 30, 2009 2:40 am 
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hm.. Why not try it out ?

Not every MS Beta OS is timebombed for BIOS, only the leaked /stolen ones.

4074 ( the very original disc from 2004, no repack or mod ) has no BIOS date barrier, e.g. can be installed with no settings back on any PC. I know, because I did that more than a double dozen times last year and this year,too and I always use a CD I burned back in 2004 which is a untinkered iso 1 to 1 copy from MS original disc ( downloaded nights long via DCC in IRC ) ..

As far as I remember this is always the case with official builds that MS handed out at WINHEC's, e.g. "openly available for paying Attendees and Subscribers".

all before 405x are bios locked, because leaked internals of MS.
4051 is the official PDC 2003 Build. ( and the first public demonstrated build ever )
4053 is a MS internal leak, it has definitive a BIOS lock ( but better than 4051 )
4074 is offical 2004 WINHEC (and MSDN) Build
5048 is official 2005 WINHEC Build.


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 PostPost subject: Re: Install Longhorn 4051 x64 without changing BIOS        Posted: Tue Jun 30, 2009 4:33 am 
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Smartie77 wrote:
Not every MS Beta OS is timebombed for BIOS, only the leaked /stolen ones.


Very unlikely. When compiling a build, how do they know if this build will leak later and "timebomb" it?

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 PostPost subject: Re: Install Longhorn 4051 x64 without changing BIOS        Posted: Tue Jun 30, 2009 11:05 am 
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What he means is only the internal builds were timebombed (and therefore the leaked ones), as opposed to the released ones like 4051 and 4074. Neither of those builds have BIOS timebombs.

Only the 3xxx i386 installs really have to have the date set back on though. The later ones either just trip the activation (meaning you can just crack the winlogon) or do nothing at all (4008's timebomb is actually broken for example). With 4051 and 4074, they let you install with any date, but then provide a 180-day timebomb and 30 days till activation iirc.

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 PostPost subject: Re: Install Longhorn 4051 x64 without changing BIOS        Posted: Thu Jul 02, 2009 11:59 am 
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hounsell wrote:
What he means is only the internal builds were timebombed (and therefore the leaked ones), as opposed to the released ones like 4051 and 4074. Neither of those builds have BIOS timebombs.

Only the 3xxx i386 installs really have to have the date set back on though. The later ones either just trip the activation (meaning you can just crack the winlogon) or do nothing at all (4008's timebomb is actually broken for example). With 4051 and 4074, they let you install with any date, but then provide a 180-day timebomb and 30 days till activation iirc.


Yes, that was what I wanted to tell. Thank you for getting that right, my abilities to express in english is a bit limited.

Anway back to the OP :

the x86 32bit of 4051 has no Date-lock, so can be installed as usual.

( 4051 is btw a very interesting LH Build, because WINFS is actually working out of the box)

Because the x64 version was originally located on the same iso ( PDC 2003 DVD contains x86,x64 and IA64 of Longhorn ) I would think this has also no date-lock. I have only x86 hardware, so I can't test it for you, although I have all the PDC discs here.

So just try it :-)


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