I do not have enough space on my computer to download the entire blockchain, so i have a 128 gb flash for this. How do I install bitcoin-qt to the flashdrive? every time i start to install it it says system memory is low so I am assuming it is still trying to install it on the laptop.
When you install, change the install directory to your flash drive. When you want to run bitcoin core, you will need to start it with the
--datadir=<path to data folder>
Option where <path to data folder> is the path to the folder on your flash drive where you want the data to be stored. The data is the blockchain, databases, and the wallet file.