What is this Disk #1 issue while installing matlab?

I have Matlab software for 32 bit installing in Windows 7 but as soon as I click yes for the installation to start, a dialog box pops up saying "The installer must be run from disk #1. Please try again"

I've tried number of times but everytime it says same.

Kindly help! thank you.

[the cyclist]

Installation issues are almost always most quickly resolved by contacting MathWorks support directly.

[Akanksha]

You mean to contact through the customer care number given in the math works support?

Answer 1

[Walter Roberson]

http://www.mathworks.com/support/solutions/en/data/1-99KTZJ/?product=ML&solution=1-99KTZJ