Photoshop Scratch Disk Error Tip

When starting up Photoshop today I received an error:

Could Not Initialize Photoshop Because the Disk Is Not Available

And then I was told that, specifically, my scratch disk wasn’t available. Huh? I have four of them! They’re right there!

It was all very peculiar, because I haven’t changed anything about my computer in the past several months. Other than to update to Adobe’s newest version of Camera RAW. I can’t say that this caused some problems, but I searched for the error message. Several people suggested checking out the scratch disk’s permissions.

Whilst doing that, I tried a little repair tip that’s useful for a lot of applications: I started up the app with the Command + Option keys held down. Voilà! I was asked to pick my scratch disks, and everything is sorted.