# slicer does not open

**URL:** <https://discourse.slicer.org/t/slicer-does-not-open/17792>\
**Category:** Support\
**Created:** [May 25, 2021, 1:25pm UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792 "2021-05-25T13:25:20Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![surgeon](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@surgeon](https://discourse.slicer.org/u/surgeon)\
**Post date:** [May 25, 2021, 1:25pm UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/1 "2021-05-25T13:25:20Z")

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Operating system: windows 10 home  
Slicer version:4.13.0-2021-5-22  
Expected behavior: opens  
Actual behavior: does not open

in installed 3D slicer on a new computer, i opened the program and installed extensions from the extension manager. when rebooting the software did not start at all. i uninstalled it and reinstalled to check about what was wrong in the extensions i added, but this time slicer did not work at all

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [May 25, 2021, 7:15pm UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/2 "2021-05-25T19:15:38Z")

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Probably you will need to remove the settings files and Slicer should start again:

[https://slicer.readthedocs.io/en/latest/user\_guide/settings.html?highlight=settings#settings-file-location](https://slicer.readthedocs.io/en/latest/user_guide/settings.html?highlight=settings#settings-file-location)

It would be good if you could test if the issue is repeatable and if so document the exact extensions you installed that led to the application not starting.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [May 26, 2021, 4:50am UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/3 "2021-05-26T04:50:03Z")

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Has Slicer-4.11 or Slicer-4.13 ever worked on this computer? Maybe its graphics capabilities are not sufficient to run Slicer. What CPU and graphics do you have in this computer?

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**Author:** ![mfs797](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/mfs797/32/14653_2.png) [@mfs797](https://discourse.slicer.org/u/mfs797)\
**Post date:** [March 14, 2022, 12:57pm UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/4 "2022-03-14T12:57:11Z")

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Dear all [@lassoan] ,  
I’ve jus installed 3DSlicer on my computer and it does not open nor create any log file or wathever. It does nothing, not even the threat of starting.  
Those are the specs of my computer :  
Operating system : windows 10 home ; version : 21H2  
Processor : Intel(R) Core™ i7-4500U CPU @ 1.80GHz 2.40 GHz  
RAM : 6.00 GB (5.89 GB usable)  
Processor graphics : Intel(R) HD Graphics 4400  
Shader version : 5.0  
Open GL : 4.3  
Open CL : 1.2  
3DSlicer version : 4.11.20210226 ; revision : 29738  
NOTE: I also tried with the 4.13.0 preview release and nothing.  
What do you think is happening?  
Thanks in advance!

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [March 14, 2022, 1:06pm UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/5 "2022-03-14T13:06:55Z")

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We need to balance between backward compatibility and utilizing new hardware features. As a result, we only support running Slicer on computers that are not older than 5 years. See details [here](https://slicer.readthedocs.io/en/latest/user_guide/getting_started.html#system-requirements).

4th generation Intel CPUs (such as i7-4500U) were released around 2013, so they are well beyond the 5-year cut-off.

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**Author:** ![Eduardo\_Hernandez](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/eduardo_hernandez/32/17229_2.png) [@Eduardo\_Hernandez](https://discourse.slicer.org/u/Eduardo_Hernandez)\
**Post date:** [November 8, 2022, 1:41am UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/6 "2022-11-08T01:41:21Z")

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I’ve jus installed 3DSlicer 5.0.3 on my computer and it just stays on white screen and does not open anything, not even the threat of starting.  
Those are the specs of my computer :  
Operating system : windows 10 pro ; version : 21H2  
Processor : Intel(R) Core™ i3-2365M CPU @ 1.40GHz 1.40 GHz  
RAM : 12.00 GB (11.8 GB usable)  
Processor graphics : Intel(R) HD Graphics 3000  
Shader version : 5.0  
Open GL : 4.3  
Open CL : 1.2  
3DSlicer version : 5.0.3 ; revision : 30893

What do you think is happening?  
Thanks in advance!

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [November 8, 2022, 1:50am UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/7 "2022-11-08T01:50:16Z")

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i3-2365M CPU was released more than 10 years ago. We need to balance between backward compatibility and taking advantage of new hardware capabilities, and thus we preserve backward compatibility with hardware that was released up to 5 years ago.

If you do not have a more recent computer then you can use free or paid cloud computers to run Slicer on. You may try using a software renderer See some more information [here](https://slicer.readthedocs.io/en/latest/user_guide/getting_started.html#system-requirements).

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [December 5, 2023, 4:00pm UTC](https://discourse.slicer.org/t/slicer-does-not-open/17792/9 "2023-12-05T16:00:53Z")

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2 posts were split to a new topic: [Slicer does not start on older computer (Intel i3-2365M, release date 2012)](https://discourse.slicer.org/t/slicer-does-not-start-on-older-computer-intel-i3-2365m-release-date-2012/33235)