Generally this issue happens when you already have an ISO image mounted to the guest VM, you can check with below steps

1.Shutdown your VM

2.Click Edit virtual machine settings

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3.Check devices CD/DVD AND Floppy , if they have image mounted, then tick Use physical drive for both of them ,then click OK

4.Power on your VM to see if you are able to install vmware tools or not

5.(Optional) If still the same , try to Remove Floppy then try again.