I need to uninstall LR4 and then reinstall on another computer.
OK. What specifically do you need help with?
Are you aware that you can have Lightroom installed on a maximum of two computers at the same time?
I want to uninstall from one computer and put the program on another computer. Thank you for your reply.
So you need instructions on how to uninstall software? Might help to know which operating system you use.
You can run Lightroom on two computers. Just don't use them both for Lightroom at the same time.
Aside from that - what VIctoria said.
To uninstall LR on a Windows PC, goto Start > Control Panel > Programs and Features, select Lightroom and click Uninstall.
To install Lightroom, run the setup program from your Lightroom DVD or download.
Your reply's blank I'm afraid.