# Why does SU think the file is open?

**URL:** <https://forums.sketchup.com/t/why-does-su-think-the-file-is-open/12221>\
**Category:** SketchUp\
**Created:** [June 17, 2015, 1:51pm UTC](https://forums.sketchup.com/t/why-does-su-think-the-file-is-open/12221 "2015-06-17T13:51:01Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Box](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/box/32/235164_2.png) [@Box](https://forums.sketchup.com/u/Box)\
**Post date:** [June 17, 2015, 2:34pm UTC](https://forums.sketchup.com/t/why-does-su-think-the-file-is-open/12221/3 "2015-06-17T14:34:12Z")

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Have a look at this thread

> [@"File currently locked by another user" error in Windows Explorer](http://forums.sketchup.com/t/file-currently-locked-by-another-user-error-in-windows-explorer/6999):
>
> We have found a bug that has a workaround. The “file currently locked by another user” message seen when the preview pane in windows explorer is open and the file is opened by double clicking. Some people get a “read only” version when opening. To see the issue, you need to have the Preview pane open (which is turned off by default - which is a good thing - on Win 7, Win 8 and Win 10), Windows Explorer needs to be set to a thumbnail view, the model needs to have a thumbnail and the user needs t…

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_[View the full topic](https://forums.sketchup.com/t/why-does-su-think-the-file-is-open/12221)._