Phew! I'm back online! :@
Had to put my laptop into the shop for a good clean etc as it was severely overheating. and it came back today after a full week and a half. According to they've "cleaned and reseated the heatsink and fan" but have also reinstalled the operating system which (as you all know) has meant that I've now got none of the many programmes I had installed on it! :@ I've managed to install Chrome again but not Windows 7 and have lost all pictures, music, videos, documents etc.
I was glad to find that I've got all my favourites and saved passwords in Chrome but wondered if anyone can tell me if theres anyway I'll be able to get Windows stuff back; could they somehow be saved somewhere and will 'synch' once I install it?