Hi @Rama_Thota,
How to convert legacy projects to Windows, please refer below links for detailed info:
Below shares 2 approaches to convert the project (I would suggest going with the 1st method but sharing just in case):
Follow below one, incase the conversion pop-up doesn’t show up in studio when you open your legacy project:
Last but not the least, follow below tutorial, you will be able to find almost everything you would need to understand wrt conversion:
See below for info regarding support for legacy projects:
One Tip: Please take a backup of your project before converting it to windows. As once conversion is done, few activities may fall out of place which are no longer supported/offered. Having the backup, you will be able to draw a comparison between the legacy and windows project to know which activities fell off and then you can create new (windows supported) activity versions for those.
Hope this helps.
Regards
Sonali