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Recently Notepad++ seems to be very slow when dealing with files that are located on a network share.

I am editing small files (e.g. web.config) and it is slow to:

  • Initially open a file on a network share.
  • Switch tabs back to a file on a network share.
  • Switch back to notepad++ after using another application.

My guess is when switching tabs back to a network file it tries to check if someone else has modified the file (I could live with turning this off and it could check on save).

I am on a "fast" local network and have only noticed this problem recently.

My local PC is Windows 7 Enterprise and the servers are Windows Server 2003 and 2008.

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  • 1
    Was this ever figured out? I still have this issue and it is maddening since most of my work is done on files remotely
    – Will P.
    Apr 27, 2015 at 16:33
  • Using the solution provided by @Lex worked perfectly for me. Kinda upsetting though cause I do like that feature.
    – Rob
    Nov 9, 2016 at 16:23
  • I know this is an old question, but this actually happened to me again recently. I have had this problem in the past too. I keep forgetting to upgrade my copy of NP++ and that often fixes it. My organization prevents auto-update so I forget to do it myself too often.
    – dyslexicanaboko
    Jan 19, 2021 at 21:02

2 Answers 2

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I ran into this exact issue. After asking around and doing some experimentation it seems to be related to Notepad++'s "File Status Auto-Detection" routines. I noticed that the more files from network shares that I had open the slower the UI would be to respond when receiving focus. I resolved this by disabling "File Status Auto-Detection". Perhaps not an optimal solution for all environments. Now I just wish there were a one button or keyboard shortcut option to check to see if the file has been changed since it was opened.

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    I have actually had this option disabled for a while now and it still exhibits the problem.
    – row1
    Apr 26, 2012 at 4:19
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    The third entry down in the File menu is "Reload from Disk". Under Settings > Shortcut Mapper, you can bind that command to a keyboard shortcut. I set mine to Ctrl - R so it duplicates the Refresh functionality I'm used to in web browsers.
    – Bobwise
    Nov 16, 2012 at 22:07
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    Settings \ Preferences, then the MISC tab and uncheck Enable under File Status Auto-detection.
    – Mangs
    Apr 18, 2018 at 15:53
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    I have also had "File Status Auto-Detection" disabled for a while, and it doesn't help much at all.
    – Jesbus
    Apr 26, 2018 at 14:38
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If tab switching is still very slow despite having disabled "File Status Auto-Detection", check whether you have the plugin EditorConfig.

Removing that extension solved the problem for me. More details on this GitHub issue.

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