Does Windows Server 2008 R2 have similar limitations to maximum number of opened files like linux have?

2 Answers 2


Windows Servers have limitations on maximum connected users and maximum open files per session. These are default settings:

  • Maximum Logged On Users: 16777216
  • Maximum open files per session: 16384

You can view them with net config server command.

  • 6
    Those limits apply to network access to files: not local (including within a remote desktop session).
    – Richard
    Mar 20, 2011 at 11:35
  • 1
    Richard, thanks for the comment, didn't know about local access.
    – Hikedaya
    Mar 20, 2011 at 11:44

Windows have limits on the number of Open File Handles.It will be around 16,711,680 on 64 bit machines and on 32 bit machines it will be 16,744,448.

64 BIT

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32 BIT

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This is the reference Microsoft Blog Post Pushing the Limits of Windows by Mark Russinovich https://blogs.technet.microsoft.com/markrussinovich/2009/09/29/pushing-the-limits-of-windows-handles/

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