Slow performance with McAfee antivirus


You might experience performance issues in Microsoft CRM if you are running McAfee Enterprise 8.x virus scanner in combination with active Script Scan.

McAfee and Microsoft are working closely together on this performance problem. If you experience this behavior, please contact McAfee to open a support case.


This problem occurs because McAfee provides the functionality of script scanning.


We suggest the following workarounds:

  • Update your virus scanner to McAfee Enterprise version 8.7, and install the latest patches. If you cannot do this, upgrade to McAfee Enterprise version 8.5, including the latest patches.

  • If the first workaround is not viable for you, you can turn off the ScriptScan functionality in McAfee Enterprise version 8.x.


893186 "Server Error in '/' Application" error message when you click a Microsoft CRM folder in Microsoft CRM 1.2 Sales for Outlook

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.