NeuroticFish  Thank you very much for your answer.

I really appropriate you taking time to answer it..
Was reading your post and did manage to get private keys for 2 addresses i have.( One have 1 BTC another 0.8 BTC)

Right now my BTC Wallet is again "Synchronizing with network" saying 4 weeks behind 
I assume it takes this long because my PC is 7 years old although i do have very fast internet.

Is it wise to wait Synchronizing to finish before exporting BTC to Electrum.?
Or i can do it straight away.

Also i am not able to add BTC address 13hnDCz14BiwsFina1h17AgP8KQonJQh8 to the wallet,probably because is still Synchronizing too.

It is like it takes 1 day approx for 1 week..
That is the address where according to Blockchain i sent 0.45 BTC .

Well i guess i didn't open my wallets for like 4 years few days up or down does not make difference.


But i am thinking to transfer LTC to my wallet on MAC .I did download the same wallet called Litecoin QT but now i learnt on Youtube there is also one Electum for Litecoin?

Maybe is easier if i use same platform for both.(for Litecoin i only have one address)

Thank you for help again..