Lightroom 3.6 crashes on start

  • 1
  • Problem
  • Updated 6 years ago
Lightroom 3.6, windows 7 ultimate. Lightroom has stopped working - when I press the desktop shortcut it just crashes. I've tried renaming preferences and re-installing. Here are the error details:
Problem signature:
Problem Event Name: APPCRASH
Application Name: lightroom.exe
Application Version:
Application Timestamp: 4edc3e61
Fault Module Name: mfc100u.dll
Fault Module Version: 10.0.40219.325
Fault Module Timestamp: 4df2e0e6
Exception Code: c000001d
Exception Offset: 00264ec3
OS Version: 6.1.7601.
Locale ID: 2057
Additional Information 1: 1d61
Additional Information 2: 1d61a93e00f4ec4bfac8b104042dbc9c
Additional Information 3: 59bc
Additional Information 4: 59bc4037f3458d9a973b08d4dd9787eb
Any help much appreciated
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Steve Gilbert

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Posted 6 years ago

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Photo of jdv

jdv, Champion

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"Illegal Instruction"

Something updated or corrupted mfc100u, is my guess. It can also be hardware/driver related.
Photo of Steve Sprengel

Steve Sprengel, Champion

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Have you tried holding down the Alt key when starting LR and creating a new catalog when it asks what to do?
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Steve Gilbert

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Thanks for replies - I tried re-installing again, then re-started my computer and it's working again. Thanks for your help.