No , my computer supports UEFI it was flashed and from company MSI was confirmed that it supports UEFI. My win 7 is installed on GPT disk and in the same PC I have Win 10 installed on separate but the same type of SSD and BIOS mode shows UEFI. I have dual boot windows , working perfectly through Ubuntu grub.
First I installed Win 7 settings in Bios were only UEFI, installation file Win 7 was created with Rufus , with settings for UEFI and GPT. It was installed without problem.. but when I checked Bios mode , this info was not there ..(see attached screenshot in previous post). If it is Bios then this line Bios mode should be there with info -BIOS Isn't it?