You cannot print and you receive the error message "Spooler subsystem app has encountered a problem and needs to close"

Step 1: Start the computer in safe mode 

Start the computer in safe mode in order to remove spool files. To do this, follow these steps:

1. Restart your computer and press the F8 key repeatedly while the computer is starting. On a computer that is configured to run multiple operating systems, press the F8 key when the Boot menu appears.
2. Select Safe Mode when the Windows Advanced Options menu appears, and then press ENTER.
3. If the Boot menu appears again and you are prompted to select an operating system, use the arrow keys to select the operating system, and then press ENTER.
   
   Note For more information about how to start your computer in safe mode, click Start, click Help and Support, typesafe mode in the Search box, press ENTER, and then click the Start Windows in safe mode topic.

Step 2: Delete the spool printer and driver filesIn safe mode, delete the spool printer and driver files. To do this, start Microsoft Windows Explorer, and then delete all the files and the folders in the following two folders (where C: is the drive where Windows XP is installed):

• C:\Windows\System32\Spool\Printers
• C:\Windows\System32\Spool\Drivers\w32x86

  Step 3: Edit the registry

     Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the  registry at your own risk.First, remove the Windows NT subkeysRemove the potentially problematic registry entries for Windows NT x86 service subkeys. These may have been installed by third-party printer setup programs and may be interfering with the print spool service. Follow these steps to keep the drivers, print spools, and registry entries that were included with Windows and to remove all other drivers, print spools, and registry entries that may be causing issues.

1. Start Registry Editor. To do this, click Start, click Run, type regedit in the Open box, and then click OK.
2. Locate and expand the following registry key to view the list of subkeys (subfolders):HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environments\Windows NT x86
   In the subkey list, there should only be the following subkeys:
   • Drivers
   • Print Processors
3. If there are any subkeys other than the subkeys that are listed in step 2, follow these steps:
   1. On the File menu, click Export.
   2. In the File Name box, type the name that you want to use for this key, such as WindowsNTx86regkey, and then click Save.
      
      You can use this backup of theHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environments\Windows NT x86
      registry key to restore the key if you experience any issues after you complete this procedure.
   3. Delete all the subkeys other than the subkeys that are listed in step 2. To do this, right-click each subkey that is not displayed on the list, and then click Delete. Click Yes when you are prompted to confirm the deletion.

Second, remove registry entries for the default print monitorsRemove the potentially problematic print monitor subkeys that may be interfering with the printer that you want to use. These may have been installed by third-party printer setup programs. Follow these steps to keep the print monitors and registry entries that were included with Windows and to remove all other print monitors and registry entries that may be causing issues.

1. Start Registry Editor if it is not already open. To do this, click Start, click Run, type regedit in the Open box, and then click OK.
2. Locate and then expand the following registry key to view the list of subkeys:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors
   In the list of subkeys, there should only be the following subkeys for the default print monitors:
   • BJ Language Monitor
   • Local Port
   • PJL Language Monitor
   • Standard TCP/IP Port
   • USB Monitor
3. If there are any subkeys other than the subkeys that are listed in step 2, follow these steps:
   1. On the File menu, click Export.
   2. In the File Name box, type the name that you want to use for this key, such as Monitorsx86regkey, and then clickSave.
   3. You can use this backup of theHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors
      registry key to restore the key if you experience any issues after you complete this procedure.
   4. Delete all the subkeys other than the subkeys that are listed in step 2. To do this, right-click each subkey that is not displayed on the list, and then click Delete. Click Yes when you are prompted to confirm the deletion.
4. Exit Registry Editor.
5. If a printer is attached to the computer, disconnect the printer cable from the computer, and then restart the computer.

Step 4: Install the printer and print a test pageReconnect the printer cable to the computer, install the printer according to the manufacturer’s instructions, and then try to print a test page.