How to allow applications to register PrintScreen hotkeys?

Same issue in Win 10, but OneDrive is the culprit this time.

1. Right-click OneDrive icon in system tray, select Settings, and then the Auto-Save tab.

2. Check the box Automatically save screen shots I capture to OneDrive and click OK

Now repeat and uncheck the box:

3. Right-click OneDrive icon in system tray, select Settings, and then the Auto-Save tab.

4. Uncheck the box *Automatically save screen shots I capture to OneDrive' and click OK

Go to the PicPick settings and save the hot keys.

I have the same problem in my Windows 8.1 Pro, too. My PicPick pop-up the same message when I try to cut some screen. I found that the issue was caught by Dropbox. After I close my Dropbox, both GreenShot and PicPick works fine with the Print Screen button.

Here is the solution I found, based on Jim Lu's answer to this post plus SS.'s answer here.

1. To test that it fails, this is what I did:

   1. Start PicPick.
   2. See it complaining "hey man, can't register hot keys" blah, blah.

2. To solve the problem, this is what I did:

   1. Right-click on Dropbox's tray icon.
   2. Click the gear, click preferences.
   3. Select the Import tab.

   4. Re-set the "not share" state even if it is not active. To do so:

      • Check the Share screenshots and click Apply
      • Uncheck it again and click Apply a second time.

3. Now, to test it worked, this is what I did:

   1. Right-click on Dropbox's tray icon. Gear. Exit.
   2. Right-click on PicPick's tray icon. Exit.
   3. So now, none of them is working.
   4. First, start Dropbox to give it the chance to lock the keys (hopefully it won't).
   5. Start PicPick and see it does not complain.

Hope this helps!