Windows 10: splwow64.exe - Entry Point Not Found

Lately, whenever I copy and paste something or change the font of something in Microsoft Word or Excel, I repeatedly get "splwow64.exe - Entry Point Not Found" warnings. I can get three or even over a dozen of these just from a single CTRL+C or CTRL+V command. I've seen a few questions regarding these kinds of warnings, but they all pertain to printer setups; I'm not connected to any printer. How do I get rid of these?

:)

 

Windows 10 Upgrade - splwow64.exe

I updated multiple computers from Windows 7 Pro to Windows 10 Pro (x86 and x64) this week. The number problems that occurred are baffling but I finally got control of most my issues. However, one issue regarding splwow64.exe is messing up our printing.

The following is what I figured out after significant research and fix attempts:

splwow64.exe is ran under Anonymous-Login

splwow64.exe is initiated by spooler.exe for x86 to x64 printing compatibility

Anonymous-Logon prevents application from printing due to Anonymous-Logon having insufficient rights.

Application works correctly if I forcefully close splwow64.exe and run splwow64.exe under the local account (LIKE IT SHOULD)

WHYYYY is spooler.exe creating splwow64.exe under Anonymous-Logon??????????? This is not a singular issue. Its occurring on at least 4 computers.

 

Word 64bit wants to print under splwow64.exe

Then the question is: Why does Word 64bit need it to print to a 64bit printer driver on 64bit Windows machine?

The other Office apps like Excel and PowerPoint don't use splwow64.exe.

Actually, we do need the Print Spooler service.

 

Windows 10 1909 - splwow64.exe issues

Hi,



Thank you for writing to Microsoft Community Forums.



We understand your concern as you are unable to print from both Samsung and Zebra printer and the
application hangs, waiting for splwow64.exe.



In this scenario we would like you to perform the registry changes on your Dell PC and check if you are able to print.

1. Click Start, and then click
   Run.
   
2. Type regedit, and then click
   OK.
   
3. Locate and then right-click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print
   
4. Point to New, and then click
   DWORD Value.
   
5. Type SplWOW64TimeOutSeconds as the registry entry name, and then press Enter.
   
6. Double-click the SplWOW64TimeOutSeconds entry that you created in step 4.
   
7. Enter a value in the Value data box, and then click
   OK.

Note: You must enter a value that is greater than 0 (zero) in the
Value data box. The value that you enter is the number of seconds that the system periodically waits while the system checks whether the Splwow64.exe process must be unloaded. The Splwow64.exe process is unloaded when the number of seconds
that is specified in SplWOW64TimeOutSeconds elapses since the last 32-bit print process has closed. Therefore, when a service process prints, the print capability is not released until the service closes and at least the time that you specify
in the Value data box passes. For example, if you type 15 in the
Value data box, and the last 32-bit process takes two minutes to print and close, the print capability is released between two minutes and 15 seconds and two minutes and 30 seconds. If no time-out value is specified, the default time-out value
is two minutes.



Note: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify
the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.



Follow the steps to take
backup of registry.




Let us know how it goes.



Aditya Roy

Microsoft Community – Moderator