Deleted all shortcuts from start menu accidentally

Yeah u r right. This is going to be next step.
Thanks

The thing for some reason even though system restore is ON but still there are no restore points to select.
I have found a quite apt resolution to my problem. I have been able to create all the appData files by selecting START-> right click on Account name-> Select Include Library-> Create new library. It has automatically created all the folder system that previously there.
Thank you everyone for their support, hope to get the same in future.
Thanks

That's a clever solution - I hope it gets enough of the system and installed programs going again. Glad to hear and thanks for posting back. :)

Thanks for the update, Ekant. Your solution may help someone in the future.