BitLocker Encryption Process? Used or Entire Disk Space?

  1.    #1

    BitLocker Encryption Process? Used or Entire Disk Space?

    Hello everyone,

    Since choosing to encrypt the ENTIRE drive with BitLocker which can take very long time to complete, can I encrypt the Used Disk Space only when re-installing Windows 10?
    When there is a need for me to reinstall Windows, here is how I do it.

    1. Boot from USB to boot the Windows or Windows 10 OS setup process
    2. Then, I wipe every drive/partition under the Advanced Page section were you can format or delete all the drives listed. I usually take all the drives listed and DELETE them until I see the only one listed as Unallocated Space. That's it. Everything else is deleted.

    Then I continue on with the Windows installation.

    Now, this is NOT a new drive. This has been used a lot to reinstall Windows. But I always DELETE ALL the listed drives that I see until the Unallocated Disk is listed only.

    So, my question is this. Will I still need to encrypt the entire drive or will encrypting the Used Space Only will be OK since I deleted all the drives and started from scratch when reinstalling Windows 10?
    Or does encrypting the Used Space Only applies when getting a new physical disk or PC?

    Because the issue I want to avoid the next time I reinstall Windows (in case I get bit from malware or something like that), is to wait 10 hours to encrypt the whole drive again...

    Now its too late, because I already began the entire disk encryption with BitLocker.

    But I do want to avoid waiting in case I do have to reinstall Windows 10 again.
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    Last edited by win10freak; 05 Jan 2016 at 15:53.
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