Did you say that your work wants you to encrypt the drive on your laptop? If you're serious about it, we could use Veracrypt. It's a bit painful to use (what isn't?), but, since you only have the "home edition" of Windows 7, it is really your only option. If it's not really necessary, then let's live with what you have and, the next time you need to buy a laptop or whatever, we can do encryption then.