Posted 02 April 2007 - 06:24 AM
There shouldn't be a problem installing programs on your external drive.
One thing to remember though is that some programs, especially antivirus, are setup to run a system boot. This means that if your external HDD isn't plugged in you will get error messages. And programs like antivirus, which have real-time protection, need to access their files from time to time. So if you unplug your external HDD the program may not function correctly, which could leave you open to virus infection.
In my opinion, you would be better off leaving antivirus and other protection software on your internal drive, unless you plan to keep your external drive always plugged in. There should be no problem with any other programs.
The power of accurate observation is commonly called cynicism by those who haven't got it.
—George Bernard Shaw