What's your frank opinion for installing windows10 from windows7?

Probably wise to install it for good security.

See the article in the link about backward compatibility. I remember going from XP to 7 and finding that the old Quark Xpress 6 had no way of printing a file other than very badly on One Note whereas the old CS2 had no such isues. It's going to be random for you I think, so ask people running the specific programs you need to use how well they function running under 10.

http://winsupersite.com/windows-10/does-windows-xp...

Humans do NOT start out as sperm, they start as a fertilized egg. We were NEVER a sperm. Only half of our DNA came from a sperm the other half came from an EGG, dumbass.

Well in most 1st world countries the understanding of the reproductive system is covered by the age of 12yrs old at the latest in Biology class at school...so it seems you have not got to that stage, meaning you are too young to be on here............ or you are a MORON with low IQs and have never been at school.

I am not comfortable with operating MS WINDOWS7.