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Slow start-up / File Browser open to slowly
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**System Information**
Windows 10 pro, Intel(R) Core(TM) Quad CPU Q9300 @ 2.50GHz 2.50 GHz, x64 Processor.
DirectX runtime-version 11.00
NVIDIA Quadro FX 1700, Version 342.01
Blender 2.78b-windows64 (.zip)

**Blender Version**
2.77a/2.78b/2.78b | from .zip/.msi

**Short description of error**

I am experiencing a problem, when i start Blender (2.77a/2.78b/2.78b | from .zip/.msi | from hd or from external hd) the cursor in the cmd line keeps blinking for several minutes before the Blender start-up file shows up. When i try to open a file or (for instance) try to change the tmp folder were renders are being saved it also takes a minute (at minimum) before the file browser opens. Another strange thing is that in the recent file section some file load immediately, but some others don't (also takes a minute or so). Please have a look at the video i screen captured.

I also created a system-info.txt, whats been added to this post.

I already accessed C:\Users\%Name%\AppData\Roaming\Blender Foundation\ Were i moved the complete Blender folder to the desktop. When opening Blender again all my user preferences were indeed gone but the same problems still occur.

**Exact steps for others to reproduce the error**

No idea



Event Timeline

ty for your reply, is there a how-to on how i can monitor it properly and export the desired values?

This is a little out of scope for this bug tracker, but fair enough,

  1. Start process monitor and start capturing events.
  2. Start Blender.
  3. Wait for the UI to show.
  4. Stop Capturing Events
  5. in the process name column, look for blender.exe, right click on it, and select 'include blender.exe'
  6. File->Save and be sure only to save the filtered events.

ty very much,

this is the outcome file;

Weird, it's not doing *anything* for that minute, you can see it reading the ocio config file, then just hangs out for a minute, then continues looking for the bookmarks.txt file . weird..... I got nothing on this.

Ronald (RayVelcoro) added a comment.EditedFeb 27 2017, 11:56 PM

What should i do now?

Does bookmark.txt had anything to do with the Win10 AppData\Roaming folder?

When i try a Win10 system restore to a previous date i get an error (0x80070091) When i look that up it seems correlated to the AppData\Roaming folder as well.

Most likely Blender is hanging somewhere waiting for slow disk reads, or perhaps some kind of network timeout that Blender should handle better.

Do you have any network share or external drive locations in your recent files, bookmarks, or showing in the file browser under system or system bookmarks? Are all of them accessible?

Bastien Montagne (mont29) lowered the priority of this task from Needs Triage by Developer to Needs Information from User.Mar 1 2017, 9:15 AM

Agree with @Brecht Van Lommel (brecht) here, this is most likely a delay due to disk access (windows can block a long time trying to list a slow or inexistent device, unfortunately).

Thing to do to check this is delete (or move in some backup place outside of Blender reach) the bookmarks.txt and recent-files.txt files found in your Blender user config directory.

ty very much, a not properly removed SD-card was causing these problems. All fine now.

Glad to hear that the problem was solved. :)

If the error show up again, feel free to reopen this task.

Closing as archived.