Akash - I understand the need to handle account details privately, but could you also respond to the general case? That is, prior to version 6/CC, if my Lightroom computer crashed and died, I could simply install LR on my replacement computer. How does that work with Lightroom CC?
With Lightroom CC you do not need to Deactivate it from Help>>Deactivate unlike Lightroom 4/5
Lightroom CC Works based on your Adobe ID Sign in count
If you have used your 2 counts of Activation and try to Activate it on a 3rd computer ,it will prompt you that you are already using it on two computers,But it also will give an option to sign out of other two Computers
Same goes for All Creative Cloud based Apps .Refer Sign in and sign out to activate Creative Cloud apps