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Bluescreen during boot with stop code 0x7b or "Inaccessible Boot Device" on Windows XP Home and Pro - ThinkPad T60, T60p, T61, T61p, R60, R60e, R61, R61e, X60, X60s, X61, X61s, Z61t, Z61e, Z61m, Z61p, X300

Windows XP Home and Pro may display a bluescreen during boot with stop code 0x7b if the Intel Matrix Storage Manager (IMSM) Driver is not present.

bluescreen error

Affected configurations

The following ThinkPad System running Microsoft Windows XP Home or Pro may be affected by this symptom.

  • T60, T60p, T61, T61p
  • R60, R60e, R61, R61e
  • X60, X60s, X61, X61s
  • Z61t, Z61e, Z61m Z61p
  • X300

Power on the system and press F1 at the ThinkPad screen to enter the BIOS. Once in the BIOS, go to Config -> Serial ATA (SATA). Change "SATA Controller Mode Option" to "Compatibility". Press F10 and answer "Yes" to save configuration changes and exit. Windows should now boot properly.

Once the ThinkPad has booted in to Windows, it is recommended that the Intel Matrix Storage Manager driver be installed. To install, download the driver and follow the instructions for an update install.

Intel Matrix Storage Manager Driver for Windows XP (32-bit)


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Document ID : HT005229
Legacy Document ID : MIGR-69819
Last Updated :
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