# Slicer 4.8 stopped working

**URL:** <https://discourse.slicer.org/t/slicer-4-8-stopped-working/3982>\
**Category:** Support\
**Created:** [September 4, 2018, 11:58am UTC](https://discourse.slicer.org/t/slicer-4-8-stopped-working/3982 "2018-09-04T11:58:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![holmesrb](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/holmesrb/32/1825_2.png) [@holmesrb](https://discourse.slicer.org/u/holmesrb)\
**Post date:** [September 4, 2018, 11:58am UTC](https://discourse.slicer.org/t/slicer-4-8-stopped-working/3982/1 "2018-09-04T11:58:58Z")

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Operating system: Windows 7 Pro SP1 64 bit  
Slicer version: 4.8  
Expected behavior: Running normally  
Actual behavior: Slicer 4.8 was running successfully on a PC with 8Gb RAM and has stopped - the slicer screen appears but then nothing further happens. Have tried version 4.9 but still have the same problem. Would adding another 8Gb RAM be a good idea?

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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:** [September 4, 2018, 12:38pm UTC](https://discourse.slicer.org/t/slicer-4-8-stopped-working/3982/2 "2018-09-04T12:38:12Z")

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That sounds like it could be something wrong with your settings - you could try deleting the settings file to see if that fixes things:

[https://www.slicer.org/wiki/Documentation/Nightly/SlicerApplication/ApplicationSettings#Settings\_file\_location](https://www.slicer.org/wiki/Documentation/Nightly/SlicerApplication/ApplicationSettings#Settings_file_location)

(Of course, more RAM can be helpful if you work with big files)

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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:** [September 5, 2018, 3:47am UTC](https://discourse.slicer.org/t/slicer-4-8-stopped-working/3982/3 "2018-09-05T03:47:28Z")

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If Slicer does not start after cleaning out settings then follow further instructions described here: [https://www.slicer.org/wiki/Documentation/Nightly/Developers/Tutorials/Troubleshooting#Instruction\_for\_Windows](https://www.slicer.org/wiki/Documentation/Nightly/Developers/Tutorials/Troubleshooting#Instruction_for_Windows)