Virat The job is worth of a kid means anyone who can open and close the computer with little instruction can do the job accurately.
All you have to do is teasing your date and time settings of your computer first go to the date and time settings and adjust your date to a distant future not in the past,probably 2 years after.
Then download the costliest free software you can and install it,always remember set your date first then install, after actully running if for the first time and using it change your date to original accordingly.
How it worked ?? Hahaha. . . You actually fooled the installer when it installed it noted the date and set the date to be used for the next days for free use,but you actually predeterminded the date upto which you will like to use,cleaver na!
But but . . . As the technology is improving they are becoming more cleaver but they will never equall us,how?? If you fail in this just note down the day of installation,when it finishes bring back the date and time to its day of installation using date and time settings.
I had done both of the tricks usually first one works if not use 2nd and if you find the 2nd job difficult then . . . .then. . .what?? Just remove the bios battery,the date and time will not update and so the expiry date. Hurreyy . . . . The only problem is that you can't see date and time. But who cares if you can use worth hundreds of dollar$ for free :