You save a photo or document, you want to add a colon or semi-colon; like I just did. What's the big deal and why can't it be saved?

Why does it tell you to rename it and when you delete said little fucking colon it’s fine.

What’s the technical reason the almighty PC technology can’t get over this little colon?

Just curious.

(Plainspeak only; real techies talking pc language need not apply here – or at least google translate the mumbo jumbo for me – thanks!)

JK. ~