Locking down windows 7 home premium

[Mad Professor]

Good day all.

I am looking for help and advice with regarding to locking down windows 7 home premium.

I have 5 children, and I forever seem to be fixing problems, or reinstalling windows due to settings being messed about with, etc, etc.

So I would like to know how I would go about locking the system down, so that they can only play games via steam, use chrome, and office, but have the rest of the system locked out.

I understand that you can do most of this with Windows 7 Professional, but not with Windows 7 Home.

I do not wish to buy a new OS just to lock down the system, so what are my options?

Thanks for your time.

Best Regards.

 

[KIA]

Have you looked at Parental Controls? http://windows.microsoft.com/en-GB/windows7/products/features/parental-controls