How to remove hdd/ssd password on toshiba Satelite c55-b5101

Naturally, the easiest and simplest way to reset win 7 password is reset it with win 7 password reset disk or use the net user command to reset it. So you should check whether you have a pre-created windows 7 password reset disk, or have another available account who has administrator privilege before you try other solutions to solve this problem. How to reset Windows 7 password without reset disk

So you bought a second-hand SSD drive (or a computer with an SSD) and it's password protected?
There's no way to remove this password. Period. Your only option is to ask the person who sold you the SSD.

Up to my knowledge, you really have some problem here. Is that password yours or did you buy this SSD drive used?
I understand that SSD password only can be removed by a Master password and only provider has accesss to this master password. So if you have a receipt of your purchase, you should contact original provider (i.e. if it's a Samsung drive, with Samsung distribuitor) explan and prove your situation and they should remove tha password with their master password.

Check my answer, actually I've never encountered this situation just remember the case of a friend who bought a used SSD and had this problem

p-98 947

Lost Windows password:

• Login as Administrator. Try with no password (load safe mode if you don't see Administrator). Press F8 during boot to access Safe Mode.
  
• Login as other user (if other user is available) and manage users. Must be an administrator.
  
• Reformat computer.
  
• Use 3rd party software to remove password. Like http://www.top-password.com/reset-windows-password.html
  

I'm afraid you may have purchased a stolen laptop. It is impossible to remove a HD/SSD drive password, there are no backdoor passwords and if the Toshiba has a Power on Password then this laptop cannot boot up.
If the HD/SSD is password locked then remove the existing drive, replace it with a new HD or SSD, install Windows plus the Toshiba device drivers and programs to get a working laptop.