Open Software Solutions

Serial Advanced Technology Attachment (SATA) optical drives, such as a CD or a DVD drive, may not be available after you start a Windows Vista-based computer.

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This problem may occur if the computer uses an Advanced Host Controller Interface (AHCI) chipset. The problem does not occur if the AHCI chipset uses Parallel Advanced Technology Attachment (PATA) emulation mode.

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To work around this problem, enable PATA emulation in the system BIOS. Contact the manufacturer of your hardware for more information about how to do this. For information about how to contact the manufacturer of your hardware, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

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Hotfix information

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, x86-based versions

File name	File version	File size	Date	Time	Platform
Aliide.sys	1.2.0.0	14,952	17-Nov-2006	08:35	x86
Amdide.sys	6.0.6000.20485	15,464	17-Nov-2006	08:35	x86
Atapi.sys	6.0.6000.20485	19,048	17-Nov-2006	08:35	x86
Ataport.sys	6.0.6000.20485	107,112	17-Nov-2006	08:37	x86
Cmdide.sys	2.0.7.0	16,488	17-Nov-2006	08:35	x86
Intelide.sys	6.0.6000.20485	14,952	17-Nov-2006	08:35	x86
Msahci.sys	6.0.6000.20485	23,144	17-Nov-2006	08:36	x86
Pciide.sys	6.0.6000.20485	13,416	17-Nov-2006	08:35	x86
Pciidex.sys	6.0.6000.20485	42,600	17-Nov-2006	08:36	x86
Viaide.sys	5.1.3790.150	17,512	17-Nov-2006	08:35	x86
Aliide.sys	1.2.0.0	14,952	17-Nov-2006	09:12	x86
Amdide.sys	6.0.6000.16391	15,464	17-Nov-2006	09:12	x86
Atapi.sys	6.0.6000.16391	19,048	17-Nov-2006	09:12	x86
Ataport.sys	6.0.6000.16391	107,112	17-Nov-2006	09:15	x86
Cmdide.sys	2.0.7.0	16,488	17-Nov-2006	09:12	x86
Intelide.sys	6.0.6000.16391	14,952	17-Nov-2006	09:12	x86
Msahci.sys	6.0.6000.16391	23,144	17-Nov-2006	09:12	x86
Pciide.sys	6.0.6000.16391	13,416	17-Nov-2006	09:11	x86
Pciidex.sys	6.0.6000.16391	42,600	17-Nov-2006	09:13	x86
Viaide.sys	5.1.3790.150	17,512	17-Nov-2006	09:12	x86

Windows Vista, 64-bit versions

File name	File version	File size	Date	Time	Platform
Hccoin.dll	6.0.6000.20485	10,752	17-Nov-2006	09:11	x64
Usbd.sys	6.0.6000.20485	7,552	17-Nov-2006	06:56	x64
Usbehci.sys	6.0.6000.20485	48,128	17-Nov-2006	06:56	x64
Usbhub.sys	6.0.6000.20485	265,216	17-Nov-2006	06:57	x64
Usbohci.sys	6.0.6000.20485	24,064	17-Nov-2006	06:56	x64
Usbport.sys	6.0.6000.20485	256,512	17-Nov-2006	06:57	x64
Usbuhci.sys	6.0.6000.20485	28,672	17-Nov-2006	06:56	x64
Aliide.sys	1.2.0.0	15,976	17-Nov-2006	09:46	x64
Amdide.sys	6.0.6000.16391	15,976	17-Nov-2006	09:46	x64
Atapi.sys	6.0.6000.16391	20,072	17-Nov-2006	09:47	x64
Ataport.sys	6.0.6000.16391	121,448	17-Nov-2006	09:49	x64
Cmdide.sys	2.0.7.0	18,024	17-Nov-2006	09:47	x64
Intelide.sys	6.0.6000.16391	16,488	17-Nov-2006	09:47	x64
Msahci.sys	6.0.6000.16391	24,680	17-Nov-2006	09:47	x64
Pciide.sys	6.0.6000.16391	13,416	17-Nov-2006	09:46	x64
Pciidex.sys	6.0.6000.16391	48,744	17-Nov-2006	09:48	x64
Viaide.sys	5.1.3790.150	18,024	17-Nov-2006	09:47	x64
Aliide.sys	1.2.0.0	15,976	17-Nov-2006	09:32	x64
Amdide.sys	6.0.6000.20485	15,976	17-Nov-2006	09:32	x64
Atapi.sys	6.0.6000.20485	20,072	17-Nov-2006	09:32	x64
Ataport.sys	6.0.6000.20485	121,448	17-Nov-2006	09:34	x64
Cmdide.sys	2.0.7.0	18,024	17-Nov-2006	09:32	x64
Intelide.sys	6.0.6000.20485	16,488	17-Nov-2006	09:32	x64
Msahci.sys	6.0.6000.20485	24,680	17-Nov-2006	09:33	x64
Pciide.sys	6.0.6000.20485	13,416	17-Nov-2006	09:32	x64
Pciidex.sys	6.0.6000.20485	48,744	17-Nov-2006	09:33	x64
Viaide.sys	5.1.3790.150	18,024	17-Nov-2006	09:32	x64
Usbccgp.sys	6.0.6000.16391	95,232	17-Nov-2006	06:53	x64
Usbhub.sys	6.0.6000.16391	265,216	17-Nov-2006	06:53	x64
Usbccgp.sys	6.0.6000.20485	95,232	17-Nov-2006	06:57	x64
Usbhub.sys	6.0.6000.20485	265,216	17-Nov-2006	06:57	x64
Hccoin.dll	6.0.6000.16391	10,752	17-Nov-2006	09:20	x64
Usbd.sys	6.0.6000.16391	7,552	17-Nov-2006	06:53	x64
Usbehci.sys	6.0.6000.16391	48,128	17-Nov-2006	06:53	x64
Usbhub.sys	6.0.6000.16391	265,216	17-Nov-2006	06:53	x64
Usbohci.sys	6.0.6000.16391	24,064	17-Nov-2006	06:53	x64
Usbport.sys	6.0.6000.16391	256,512	17-Nov-2006	06:53	x64
Usbuhci.sys	6.0.6000.16391	28,672	17-Nov-2006	06:53	x64

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the Applies to section.

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For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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Technical support for x64-based versions of Microsoft Windows

If your hardware came with a Microsoft Windows x64 edition already installed, your hardware manufacturer provides technical support and assistance for the Windows x64 edition. In this case, your hardware manufacturer provides support because a Windows x64 edition was included with your hardware. Your hardware manufacturer might have customized the Windows x64 edition installation by using unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with a Windows x64 edition. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware. If you purchased a Windows x64 edition such as a Microsoft Windows Server 2003 x64 edition separately, contact Microsoft for technical support.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:

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