Your computer may freeze or restart to a black screen that has a 0xc0000034 error message after you install Windows 7 Service Pack 1

Your computer may freeze or restart to a black screen that has a 0xc0000034 error message after you install Windows 7 Service Pack 1

To Fix:

Delete the poqexec entry from the SetupExecute value,

To delete the poqexec entry from the SetupExecute (REG_MULTI_SZ) value, you must clear the value. To do this, follow these steps:

  1. Restart your computer and start pressing the F8 key on your keyboard. You have to press F8 before the Windows logo appears. If the Windows logo appears, you have to try again by waiting until the Windows logon prompt appears and then shutting down and restarting your computer.Note On a computer that is configured to boot to multiple operating systems, you can press the F8 key when the Boot Menu appears.
  2. Use the arrow keys to select Repair your Computer in the Advanced Boot Options area, and then press Enter.
    If you are prompted, select the Windows 7 installation to be repaired, and then click Next.
  3. Select the language and a keyboard input method, and then click Next.
  4. Select a user name, type your password, and then click OK.
  5. Under System Recovery Options, click Command Prompt, and then press Enter.
  6. At the command prompt, type the following commands. Press Enter after each command.
    Reg load HKLMBaseSystem C:WindowsSystem32configSYSTEMReg Delete “HKLMBaseSystemControlSet001ControlSession Manager” /v SetupExecute

    Reg add “HKLMBaseSystemControlSet001ControlSession Manager” /v SetupExecute /t REG_MULTI_SZ

    Reg unload HKLMBaseSystem

  7. At the command prompt, type exit, and then press Enter.
  8. Restart your computer.
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