How to create another partition on C drive?

I have a new hard drive, operating Windows 8.1 Pro, reinstalled most of my software.  I have to have the data encrypted.  I used Bitlocker for crashed hard drive and could not gain access to recovery partition nor my Acronis TrueImage files because they were locked.

Technicians have mentioned to create another partition and store the files on that partition and just encrypt that partition.  I need assistance doing this please.
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simonesbauerAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Right click on the C: drive and shrink the partition.  Then you can create a new one after it.

BUT, I think you're going about this wrong.  First, your bitlockered drive SHOULD have had a recovery key to unlock it.

Full disk encryption is best because people WILL NOT remember to always store files on the encrypted drive.  You're putting yourself/your files at a greater risk doing it this way.
Zac HarrisSystems Administrator Commented:
Which disk are you wanting to create the additional partition on, your image shows multiple disks...

When you determine which disk you want the partition on, just right-click it and choose "shrink volume" then in the box, enter the amount of space you want for your new partition. (Make sure you leave enough space for Windows files and updates if you chooses the same disk your windows installation is on.)

Then you can assign a letter to the partition which tells Windows there is a drive there to save data to. Then when you configure Bitlocker, you can pick that partition as the one to encrypt.
noxchoGlobal Support CoordinatorCommented:
Shrinking C drive and creating new partition will not work if the drive is not GPT. On MBR drive you can have only 4 primary partitions or 3 primary and one extended partitions. And on your screenshot you have already 4 primary partitions.
To check if the drive is GPT riht click on C then select properties. Then hardware and right click on HDD there. Select properties - volume - populate. You will immediately if the drive format GPT or MBR is.

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simonesbauerAuthor Commented:
Noxcho - its GPT  See attachment
Gary CaseRetiredCommented:
As noted above, all you need to do is shrink the C: volume; then you can create another partition in the unallocated space that will then be available.

Remember, however, as Lee noted above, that if you create an encrypted volume you have to be sure you indeed store all of your files there, as they won't be encrypted.    It's easy to relocate all of the common Windows folders [Favorites, Documents, Desktop, Photos, Music, Videos, Downloads, etc.] to wherever you want them ... but don't forget to also change the store folder for your mail client; and for any other programs you might have that don't automatically use the designated Documents folder [MOST programs these days are "well behaved" in that regard ... but not all].
Gary CaseRetiredCommented:
Note:  Regardless of what you ultimately decide to do ... i.e. set up an encrypted volume or just use BitLocker ... be CERTAIN you save a copy of the decryption keys.

While encryption certainly provides a nice level of security, I've seen FAR more data lost to the legitimate user due to lost encryption keys than I've seen actually protected from prying eyes.
noxchoGlobal Support CoordinatorCommented:
OK, then go on with advice to shrink. Think about the size you want to get from it. Since your C: drive is 930GB I would recommend reducing it to 150GB and the rest partitioning into two partitions.
One as encrypted partition for your data and the second as simple data partition. You don't need so much space on C: drive.
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