How can I Isolate the Brotherhood virus?

How can I fix the Brotherhood of Steel virus inside the computer-lab?

Solution 1:

I assume you mean this one? There is a detailed walkthru on that page.

The Courier must find the Virus on 3 terminals in 60 seconds to wipe it from the system. To do so, quickly enter each terminal and choose the only option you can. Then, if the text that shows up seems like a random string of letters and numbers, proceed to the next terminal. If you get a taunting message on the second screen, choose the option to isolate the virus. If you do not get all 3 terminals in the time limit, you will have to speak with Scribe Ibsen again. You will get a new 60 seconds and the terminals that the virus has infected will randomize.

Solution 2:

The answer is simple go as fast as you can an isolate at least 2 before your 10 prompt, then save. You will then be able reload until you find the location of the last terminal.