How can i change Font Size without changing DPI Scaling Settings?

My screen has 3 options in the DPI settings, 100,125 and 150% and the recommended one is 125% but the taskbar is huge with huge icons too and i don't like that plus there is an issue with blurred text in some windows like Device manager etc.
So i don't really know why 125% is recommended.

Anyway i want 100%, the size of taskbar and icons are perfect, now the only issue is the text there is TOO small, i need glasses to read. Then i go to ''Advanced sizing of texts and other..'' to adjust manualy the size of the text, but it's greyed out, i cannot!..

Any suggestions?

Dude said:

Select where it says custom scaling

But this changes the whole DPI scaling, i messed a little with it in the past and i couldn't find a good number that would fit.
It was even making icons look blurry sometimes.

Cliff S said:

Go to the settings app and make sure it looks like this.

then try the text size.

also to cure text blurriness, use Adjust Clear Type Text

When i put my scaling to 100% imemdiately the text size options are greyed out for some reason as i mentioned in the post.
And yes i have it checked the 'Clear Type Text'.

Something out of topic though, how did you put colour on the title bars? I had searched that before but there isn't any option.

Cliff S said:

Try this:

Click “set a custom scaling level” . Set custom level to 100%, then apply.
Log out of Windows, then back in, and the grayed out area “change only the text size” should be available.

Damn it worked.
What a smart way to adjust the font size and i feel stupid that i didn't think of that way, lol.
Nicely done, thanks a lot.