Can any one please help me solve this strange problem, I've been trying for the last five months.
Here are the details :
When I open any site, I sometimes see unknown images replacing the original images on the website. (Image URL is same). They are not ads and can't be clicked. Just random images of people, cartoons etc.
When I refresh the page, the fake images are gone. It happens on all websites with images,
It happens on both my PC and my Android (Probably because I connect & Transfer files alot)
I am using Opera & Firefox Browsers with no add-ons, extensions etc. and I regularly clean the temporary files using CCleaner utility.
I have Malwarebytes and Bitdefender Installed & I also installed a fresh copy of Windows 10 with Format C drive. I didn't find anything suspecious on startup.
Here is a latest example, please check the replaced thumbnail for "Harvest Time" theme .
I shall be really thankful for help.