The use of adapters is not supported. If you must use an adapter, get a better quality adapter.
What is your processor model number?
What is your laptop model number?
What version of windows 10? 1909?
win10 1909, i3-4000M, Model number - I don't know - how and why would I need to know?
Figured that there might be some soft that could convert VGA signal into digital, suitable for hdmi output?. My VGA to HDMI is:
Output: 1x VGA DB15 female without nuts, VESA up to WUXGA, 1920x1080 at 60hz + 3,5mm stereo jack. Input: 1xHDMI 19pin male
Well, you should know the model number of your laptop and who made it.
Not all adapters will work, which is why that are not supported. Get a good adapter, and a good cable.