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Windows 98 Boot Lockup fix ( Disabling ACPI cleanly )

New MessageWindows 98 Boot Lockup fix ( Disabling ACPI cleanly ) (modified 0 times) supes
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After fighting, trying to disable all the ACPI instances, I came across something on MSDN.

Before doing any PNP on your Compaq Ipaq devices, goto the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Current Version\Detect

Add a new value called "ACPIOption" Type DWORD.

Make the value "2"

Then run the Add New Hardware to detect your devices. This will cleanly disable ACPI and allow good PNP on the devices. No more fighting PNP to disable devices and multiple reboots :)

12-27-2001 13:45:33

New MessageRE:Windows 98 Boot Lockup fix ( Disabling ACPI cleanly ) (modified 0 times) rocketdog
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I'm trying to install win98 using a 340M microdrive. The install proceeds until after the reboot where the PNP phase begins.
At that point I am able to boot in safe mode, and I use regedit to disable ACPI via the ACPIOption=2. However when I
try to boot normally I never get past the Win98 splash screen. From what I've read of other's experiences, ACPI seemed to be
the only issue along the way. Is this registry setting all I need to do to get around that? Am I doing it at the right point?
Are there any other obvious steps I'm missing?
01-12-2002 14:21:10

New MessageRE:Windows 98 Boot Lockup fix ( Disabling ACPI cleanly ) (modified 0 times) romancer
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Has anyone else had a similiar problem? I am installing win98 from a 340 Microdrive. Everything goes fine until windows wants to detect PNP devices. At that point the power light comes on and windows freezes. A reboot causes it to hang on the Windows splash screen. Booting to safe mode causes an error "Cannot detect devices in safe mode" and gives me a blank desktop. I am pretty sure that ACPI is my problem but how do I go about disabling it if I can't boot normally or in safe mode?
03-13-2002 15:06:45

New MessageRE:Windows 98 Boot Lockup fix ( Disabling ACPI cleanly ) (modified 0 times) radarman
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The trick is to go through the first stages of the install on another system, then delete or disable the offending devices before putting the microdrive back into the system. Be sure to disable ACPI as well, or Windows will just reinstall the driver and you will be back to square one. I have (or should say had) Win98 running on a Microdrive, and that is how I had to do it. One word of caution - make sure you have all of the drivers in a folder on the Microdrive, as USB is one of the devices that gets munged.

I actually went one step further, and deleted all devices, and let Win98 redetect the whole system - but that may not be necessary.

One last note - I made the mistake of reenabling ACPI, and just disabling the components that cause the problem (the PCI and DMA drivers). Bad move. You get a whole load of munged drivers. Leave ACPI off completely. You don't get the little green light, but everything else works.

03-14-2002 07:06:22

New MessageRE:Windows 98 Boot Lockup fix ( Disabling ACPI cleanly ) (modified 0 times) axxhacker
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If you wait long enough while in safe mode, after it says could not detect devices, it will load up. It just takes a while.
axx-hacker
11-13-2002 13:45:40

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