Font size changing whenever changing settings in personalization.

Hello sevenforums! I have a problem with my computer i recently purchased. Here is my story.

This all started whenever I wanted to change my text size different by changing my DPI settings. What I did was right click, go to screen resolution, and clicked on "Make text and other items larger or smaller". From this I changed it to 100% from 125%. I noticed it had changed my font size to the 100%. It then made everything SUPER small when I changed my theme settings.

Whenever I right click and go into personalization settings, I do the usual customizing to my likings. Since I want to save the theme, I do so by naming it, blah. Now I want to use the blah theme by click on it, and I do so. Everything is fine and dandy until I right click my desktop to refresh(out of habit). This is the before and after of the font sizes.
Before
After

My workaround was to set a custom DPI setting, log off like it prompts me to, then changing it back to 100%, again prompting to do so. It is so annoying to do so.

Help me! It is driving me crazy and I have no idea how to fix it. I cannot save a theme and change to it, otherwise it results in the small font. It affects all the fonts soon afterwards. Like google chrome will be fine until i exit and restart the program. Then a super small font follows.