I was installed FM12 (licensed) in my laptop. Due to physical damage, i swapped hard disk to standby laptop. Then the trial version of FM12 is started. After getting my original Laptop, i connected same hard disk and tried to launch FM12 and other Adobe applications. All the applications are converted to trial and asking for license activation which i don't have (lost). Please help.
I don't quite get the sequence of actions you did here, but would suggest you find your serial number(s) - you must have had them at some point since you purchased the product(s), right? - and contact Adobe Support.
If you do not have your activation code available any more, please go to https://accounts.adobe.com/plans. There you can see all your registered plans and products associated with your account. If your licenses are part of an Enterprise License Agreement, please contact your IT.