Has anyone else run into this problem with Android emulators?

The first time I installed BlueStacks back in August, I used it a few times, decided I didn't want it, and uninstalled it. A few months later, I decided to check out some of my old pictures again. Some of them had been resized to be incredibly small, but the real kicker is that whenever I opened them up with Irfanview, they would be bloated to 200-400% to fit my screen, and look incredibly pixelated and poor quality. Every single picture that was altered too said they had that they had been modified on the day I installed BlueStacks when I checked the properties section.

So I got a new interest in using Android emulators and tried KOPlayer. I wanted it for Snapchat, but that didn't work either, so I went ahead and uninstalled it. Now, sometimes when I download new pictures, they are sometimes bloated to ridiculous degrees. Is this a common fluke and is there anyway to fix this?