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Slow Printing With Microsoft Security Essentials (Or Other Antivirus)?


Posted on: September 24th, 2013

I just solved the above issue and since I could not find the solution in any online forum I thought to publish the solution for others to find.

Basically, the slow down is caused by the antivirus’ monitoring of file activities. When you print there are a lot of data is being moved around because the printout is first stored in a file and then fed to the printer (this is called spooling).  Because antiviruses watch for files being opened and written to this activity will most likely trigger a virus check on the data being sent to the printer, and that could result in slow operation if the computer is not a very fast one.

The solution I found was to add some exceptions in Microsoft Security Essentials for the following items:

- the C:\Windows\System32\Spool folder &
- the C:\Windows\System32\spoolsv.exe process

This seemed to have done the trick and the processor wasn’t bogged down after sending a print job.

I hope this will be helpful to others.

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