Why does Packet Tracer Simulation Mode look different on my machine?

[nicomp]

I'm running Packet Tracer version 7.3.1.0362 in Windows 10. My Simulation Mode doesn't have the icons that I see in tutorials and screen shots from other users. The image is two screen snips: what my version looks like and what I see in tutorials and other users. How do I fix my version?

[Martin L]

PT looks different on Win 10 from  Win 7; Top picture looks like 10; button one is 7; however,  PT version is the same 7.3.1 for both Windows. 

Still, click on icon above Real-time on top picture to get to Sim mode on win 10 (top picture)

this cannot be fixed unless you run Win 7

Regards, ML
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[nicomp]

"click on icon above Real-time on top picture to get to Sim mode on win 10 (top picture)" - there is no 'icon above real time' in my Win 10 version (bottom picture). The top picture is from a YouTube video: I don't know what O/S is being used.