what is the difference between exe and iso?

An EXE is an executable file containing compiled code. These can either be setup/install files or the actual program itself. An ISO is a software image of a CD or DVD. Think of it as virtualizing your CD/DVD. They can then be burned back onto CD/DVDs.If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". Rich Prescott | MCITP, MCTS, MCP Blog | Twitter: @Rich_Prescott Follow @Rich_Prescott | Powershell Client System Administration tool

i just bought windows 7 and i am going to be saving the download onto my external hard drive to then load onto my computer then laptop which should i get??

The simplest is EXE. ISO is more flexible, but is more for power-users right now as there are not many built-in Windows tools for them.If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". Rich Prescott | MCITP, MCTS, MCP Blog | Twitter: @Rich_Prescott Follow @Rich_Prescott | Powershell Client System Administration tool

Thank you very much i am just using Windows around the house and not for anythin extreme just basic stuff

You're welcome. Let us know how it goes and if you need any more help.If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". Rich Prescott | MCITP, MCTS, MCP [Blog] Engineering Efficiency | Twitter: @Rich_Prescott | Powershell Client System Administration tool

oh and i am wondering but what is the difference beween 32 bit and 64 bit?

It is a different processor architecture. 32-bit only allows you to use ~3GB RAM, whereas 64-bit allows you to use much more. Most people that are installing Windows 7 nowadays are using 64-bit, as it allows them to make full use of their memory.If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". Rich Prescott | MCITP, MCTS, MCP [Blog] Engineering Efficiency | Twitter: @Rich_Prescott | Powershell Client System Administration tool