Computers can do many tasks. They can make videos, create rock music and make databases, if you have the right program. If you want to make a program portable, you can install it to a flash drive, and then any computer that has a USB drive can use the program.
Insert the USB flash drive into the computer's USB drive.
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Find a program that you want to install, whether that be online or from a disc. If the program has to be downloaded online, right-click the file, click "Save Target As" and hit "Save."
Open the program. If it is a downloaded file from the Internet, double-click it. If it is a CD-based program, insert it into the computer. It should automatically pop open.
Click "Custom" install. This is where it will ask you where you want to install the program. Click the flash drive and press "Install."