fl1pqc8rvabp Your account is independent of your computer(s) or hard drive(s). So you can just login to your account and download everything you've bought to the new drive.
Before installing the game though, please make sure the drive is formatted as NTFS. While it's not strictly necessary for installing the game, there can be other issues with FAT32/exFAT drives. Changing the format requires erasing the drive, so it's best to do that now if required.
To check, and possibly format the drive, click Windows key-X and select Disk Management. You'll see the format and various options there.