Update: Just solved my problem.
For those who had the same issues as me, since I was able to log into my old wallet on my old computer, I was able to export the private keys there and sweep the private key containing my bitcoin into my new wallet.
Or, you could have just copied the wallet file from the old computer and paste it to the new one.
Importing just the Private keys will make your new wallet incapable of creating
electrum seed for future backup, in case of losing your original seed and old PC's drive.
While it's true that imported keys are not backed up by a seed, you'll note that the OP actually "swept" the private keys... so he has moved the coins from old private keys onto new addresses in a new wallet (hopefully with a seed!
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
)