Runaway processes are the bane of a functioning Mac; you find them in the console in their thousands when things go wrong. I’ve had a particular problem recently with the coreduetd process. Thanks to Gordon Mackay I’ve now a solution:

1. In the Finder menu choose Go -> Go to Folder… – or cmd + shift + G
2. Type: “/var/db/coreduet”
3. Delete everything in that folder
4. Restart – I skipped this part to no harm


Published by Peter Neal

I'm a small business consultant enabling small business owners to achieve sustainable growth, whilst working part-time at Tees Valley Arts. For more about me personally see

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