Message: we can't remove windows accounts

Question

We have installed Office 2013 Pro Plus via our E3 O365 subscription. It automatically connects the components (Word, Excel, ...) to the domain user account [email protected] in
our case.
We want to get rid of that account and connect Word, etc to the O365 account of each user.
It turns out that we misspelled the name of a new user in Active Directory. We corrected the error in the name in AD, but the name still has the error in Word, and other Office programs. Where can we correct the name or how can we get rid of this account and
change it in the O365 account?
We can setup a connection to the O365 account but everytime an old document (= created/opened earlier with a connection to the .local account) is opened it hooks up to the .local (domain account).
We can not sign out of the .local account, then we get "We can't remove Windows accounts"
A solution is really appreciated.!

Answer 1

Because once you use Disk Utility to do any repartitioning after creating the BC partition, then BCA cannot manage the disk any more. Too bad you did not first read the BC documentation that you can print out from BCA.
What you need to do:
Drive Preparation
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button.  When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Steps 4-6 are optional but should be used on a drive that has never been formatted before, if the format type is not Mac OS Extended, if the partition scheme has been changed, or if a different operating system (not OS X) has been installed on the drive.