# Slicer not opening anymore

**URL:** <https://discourse.slicer.org/t/slicer-not-opening-anymore/18520>\
**Category:** Support\
**Created:** [July 5, 2021, 3:21pm UTC](https://discourse.slicer.org/t/slicer-not-opening-anymore/18520 "2021-07-05T15:21:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bcolbert](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/bcolbert/32/11162_2.png) [@bcolbert](https://discourse.slicer.org/u/bcolbert)\
**Post date:** [July 5, 2021, 3:21pm UTC](https://discourse.slicer.org/t/slicer-not-opening-anymore/18520/1 "2021-07-05T15:21:46Z")

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I am using a Windows desktop with plenty of RAM (64gb, no other programs open). Slicer worked fine until 20minutes ago when it crashed my computer when opening up a relatively small dataset. Computer restarted and now I am unable to open slicer.

When I open the program I get the initial window and the program shows up in the task manager, then a few seconds later the status in task manager changes to “suspending” and then closes out.

I have uninstalled and reinstalled slicer and am using latest stable version. Other programs appear to run fine on the computer. Any ideas?

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**Author:** ![geoffkfleee](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/geoffkfleee/32/11115_2.png) [@geoffkfleee](https://discourse.slicer.org/u/geoffkfleee)\
**Post date:** [July 5, 2021, 9:27pm UTC](https://discourse.slicer.org/t/slicer-not-opening-anymore/18520/2 "2021-07-05T21:27:48Z")

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So a ‘fun’ bug I noticed is that Slicer has trouble opening on non-primary monitors. [I believe it is closely related to this issue, or some variation of it.](https://trac.wxwidgets.org/ticket/18532) It’s not you. It’s OpenGL.

An experiment to verify this is to unplug the second monitor or any other non-primary monitor, open Slicer, and see if it works. You may have to try moving it if it’s starting off-screen.

Cheers.

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**Author:** ![bcolbert](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/bcolbert/32/11162_2.png) [@bcolbert](https://discourse.slicer.org/u/bcolbert)\
**Post date:** [July 5, 2021, 10:01pm UTC](https://discourse.slicer.org/t/slicer-not-opening-anymore/18520/3 "2021-07-05T22:01:53Z")

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I think this was some obscure issue related to my PC. I got another BSOD when the computer restarted it went into recovery mode. After restarting again slicer worked fine. Who knows.