some ideas:
try moving the quicklook plists to the desktop (in users>home>library>preferences); there should be 2 or 3 files.
reboot, see if that helps.
run disk first aid?
google the issue?
Weird....not seeing those in that spot.
make sure you're in the (usually hidden) user preferences.
and look for the 2 or 3 files like this:
com.apple.quicklook.satellite.plist
you've rebooted? (of course?). does it ONLY happen with videos and pics? are you using flip4mac by any chance?
look in Hard Drive>Library>Quicktime. do you have the flip4mac components there? try moving them to the desktop (make sure they're OUT of that folder).
reboot, see if anything changes...
otherwise, reinstalling mavericks is a much saner move than upgrading to the yosemite beta...
am not an expert on that. i would either try that, and/or...just make sure the microsoft user folder is backed up.
you might also move all inbox and sent mail into custom folders in outlook...
in case that email is cached and doesn't back up. but am not sure that would happen.
anyone else have advice?
Resolution! Ended up with a new laptop out of this but after calling in to Apple Care again tonight I got a guy that knew his ****. The culprit was a folder in the "containers" folder. "quicklook.uihelper" Deleted it, restarted, OSX rebuilt it and poof.....working perfectly.
This solved my Quicklook crashing problem in Yosemite. I simply renamed the com.apple.quicklook.ui.helper folder in ~/Library/Containers to com.apple.quicklook.ui.helper.old, and everything seems to be working as it should.
This solved my Quicklook crashing problem in Yosemite. I simply renamed the com.apple.quicklook.ui.helper folder in ~/Library/Containers to com.apple.quicklook.ui.helper.old, and everything seems to be working as it should.
Resolution! Ended up with a new laptop out of this but after calling in to Apple Care again tonight I got a guy that knew his ****. The culprit was a folder in the "containers" folder. "quicklook.uihelper" Deleted it, restarted, OSX rebuilt it and poof.....working perfectly.