I recently commenced a trial of Lightroom CC after using Version 5 for the past few years. However every time I try and access images from my external storage it crashes and won't let me edit the images.
Go to Lightroom Preferences > Performance > uncheck "use graphics processor " and then, check.
If this does not help, could you please share the crash report?
And which operating system?
Many thanks for your help. All working fine now.