Affinity Photo is a great tool for editing photos, and I love that it can integrate the Nik collection. However, there is a serious problem with it that is frustrating users of Windows 10. It crashes and closes a lot when opening. I personally have Affinity on 2 computers, and this problem only occurs on one of them.
If you look at affinity forums, you'll see them littered with complaints from angry Windows 10 users. The most common “fix” is to update the graphics drivers on your computer. Mine were already up to date. However, I found a solution in my case that has worked so far (touch wood). It's simply to run Affinity Photo in Windows 8 compatibility mode.
To do that, search for Affinity Photo in your start menu and right click the icon and select Open File Location.
This will open Windows Explorer in the correct folder.
Right Click the Affinity Photo icon and select Properties:
On the Properties dialogue box, click onto the Compatibility tab and select Run this program in compatibility mode for, then choose Windows 8 from the drop down box.
Click on OK to save these settings.
That's it. If your crash was caused by the same reasons as mine, then Affinity Photo should now work in Windows 10 without automatically closing 9 times out of 10 when you try to run it.
If this did solve your problem, please leave a message in the comments below. If you found an alternative method to fix this, then also please let me know in the comments.