Reuse the software after the trial period is over

This is very a common question faced day to day by a common man... How can I reuse the software whose trial period has been elapsed?
For this you need to follow these simple steps but beware any mistake can leads to several problems in your laptop. So do this with care and if you are not sure then don't do this.

Step 1: Uninstall the software and follow the steps.
Step 2: After uninstalling software, OpenRUN (Windows key + R) and type regedit and hit Enter.
Step 3: Then Registry Editor Window will appear and here navigate to HKEY_LOCAL_MACHINE SOFTWARE Your Software name from left pane of this window. If you find any Key name with your software name then simply delete that Key.
Step 4: Similarly navigate to HKEY_CURRENT_USER Software Your Software name and if you find any key with your software name then just delete it and close the Registry Editor window.
Step 5: Again go to RUN and type %temp% and hit Enter.
Step 6: Now Delete all the things in that temporary folder. Don't panic as these are the temporary files and are not necessary for your operating system.
Step 7: Now go to C:Usersyour username hereAppData. Under AppData open all three folders"Local", "Local Low" and "Roaming”and check. Under these three folders if you find any folder or anything with your Software's name, just delete it.
Step 8: Now Restart your PC and instalal the expired software and you can use it again for trial period.