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Fix Windows Vista Black Screen and Slow Boot

· 3 min read

If your Windows Vista computer boots to a black screen or takes an extremely long time to reach the desktop, the issue is often caused by incompatible or corrupted drivers - particularly PCMCIA, 1394 (FireWire), and SD bus drivers, or by virtual drive software such as Daemon Tools interfering with the boot process.

Below are two methods to resolve the issue, starting with the most common fix.

Method 1: Remove problematic driver files​

Warning: This method involves deleting system files. Only attempt this if you are comfortable working with Windows system directories. Create a backup or System Restore point first if possible.

  1. Boot into Safe Mode (press F8 during startup and select Safe Mode), or use a Windows installation disc to access a command prompt.

  2. Delete the following files and folders:

    • C:\Windows\System32\drivers\pcmcia.sys
    • C:\Windows\System32\drivers\1394bus.sys
    • C:\Windows\System32\drivers\ohci1394.sys
    • C:\Windows\System32\driverstore\filerepository\pcmcia.* (the full folder name starting with pcmcia)
    • C:\Windows\System32\driverstore\filerepository\1394.inf* (the full folder name starting with 1394)
    • C:\Windows\System32\driverstore\filerepository\sdbus.inf* (the full folder name starting with sdbus)
    • C:\Windows\inf\sdbus.inf
    • C:\Windows\inf\sdbus.PNF

  3. Restart your computer and at the boot menu, choose to edit boot options. After the default option /noexecute=optin, add a space followed by /debug. Press Esc to continue booting.

  4. Once in Windows (or Safe Mode), find and delete any files named sptd.sys (this is a driver used by virtual drive software like Daemon Tools that can cause boot conflicts).

  5. Open a Command Prompt as Administrator and run:

    cd \windows
    del *pcmcia*.* /s /p
    del *1394*.* /s /p

  6. Restart your computer.

Method 2: Adjust BIOS settings​

If Method 1 does not resolve the issue, the problem may be related to the SATA controller mode in your BIOS:

  1. Press F2 during startup to enter the BIOS setup.
  2. Navigate to Onboard Devices and set Flash Cache Module to Off. (The SATA setting cannot be changed until Flash Cache Module is disabled.)
  3. Navigate to SATA Operation and change the mode from AHCI to ATA.
  4. Save the changes and restart the computer.

Switching from AHCI to ATA mode can resolve boot issues on systems where the AHCI driver is corrupted or incompatible, though it may reduce disk performance slightly.

Additional tips​

  • System Restore: If you can access Safe Mode, try running System Restore to roll back to a point before the problem started.
  • Check for malware: Boot issues can also be caused by malware. Run a scan using a bootable antivirus rescue disc if you cannot reach the desktop.
  • Update drivers: Once you can boot successfully, update your chipset, SATA, and graphics drivers from your motherboard manufacturer's website to prevent the issue from recurring.