try to explain, if she does not understand, just put IE back. 

Both. Then introduce her to Chrome.

But internet explorer is on her computer. It is not nice deleting shortcuts off non-tech-savvy computer users.

@Comic_Sans_MS It exists but normally in Windows 10 it's there just for Legacy support. It's meant for daily use.

@NinjaJc01 Her laptop has a dual core Pentium with 4GB RAM. I don't think chrome would be a good idea.

@DeezNoNos I kinda did that except she's mad that I removed it in the first place. IDK if she knows I put it back.

*not meant for daily use

Actually, have you seen my Core 2 Duo laptops with memory leaks...

Comeon, I know people who use IE8 daily, what is wrong with IE11?

a pentium. is it those pentium D form back in 2010. Like how do u run win10 on it. It would barely run win7. Anyway just put it back and keep the option for both.

@DeezNoNos This is a either a Haswell based Pentium OR an Atom based Pentium. Those runs Windows 10 just fine.

@Comic_Sans_MS Oh you know, the part where it's security is so terrible and it has loads of exploits.

Pentium D =/= Pentium Dual Core

Pentium D's are the successor to Pentium 4's

Core2 Duos replaced Pentium D's, Pentium Dual Cores are low end Core2 Duos.

@Comic_Sans_MS Yep that's how it is.

@AluminiumTech It makes sense, it is on windows.

@Comic_Sans_MS Care to do some research before telling someone what you believe to be true?

@AluminiumTech I didn't mention Core iX based Pentiums.

Teach her to use Edge, IE is garbage, always was and always will be.

@iiNNeX Edge is just as bad, if not worse.

@NinjaJc01 Yes I agree, it is bad too but not as bad. And out of what the OP has asked it is the better choice. Personally I use Chrome and have been since it's release. Firefox is my go to 2nd browser.

@NinjaJc01 Are you kidding? Edge is way better!

@AluminiumTech I mean Edge is better than IE but, Chrome is soooo much better than Edge. Though I will admit, the dark theme in edge is nice.

Except that it's a light browser...