Determining the last system image backup time for a Windows system

I backed up a Windows 10 system to an external USB disk drive using the backup utility that comes with the operating system that can be run by right-clicking on the Windows Start button then choosing Control Panel then Backup and Restore (Windows 7), which is found beneath System and Security, and then choosing Create a system image. If you create a system in that manner and then later wish to know the date and time you backed up the system without reattaching the drive you used, you can do so from a command prompt window with administrator privileges by using the wbadmin get versions command as shown below:

C:\WINDOWS\system32>wbadmin get versions
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2013 Microsoft Corporation. All rights reserved.

Backup time: 2/19/2017 8:31 PM
Backup target: 1394/USB Disk labeled Seagate Backup Plus Drive(E:)
Version identifier: 02/20/2017-01:31
Can recover: Volume(s), File(s), Application(s), Bare Metal Recovery, System State
Snapshot ID: {d4a62a80-ac6f-4aba-8886-6ba570c1284a}


C:\WINDOWS\system32>

Once you have the version identifier(s), you can use it to view the details regarding what volumes were backed up on the system to the external USB drive using a command in the form wbadmin get items -version:version_id. E.g.:

C:\WINDOWS\system32>wbadmin get items -version:02/20/2017-01:31
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2013 Microsoft Corporation. All rights reserved.

Volume ID = {17dbd7f6-0000-0000-0000-100000000000}
Volume 'System', mounted at <not mounted> ('System', mounted at <not mounted> at the time
the backup was created)
Volume size = 100.00 MB
Can recover = Full volume

Volume ID = {17dbd7f6-0000-0000-0000-500600000000}
Volume 'Windows', mounted at C:
Volume size = 1862.18 GB
Can recover = Full volume

Volume ID = {17dbd7f6-0000-0000-0000-2092d1010000}
Volume 'Recovery image', mounted at <not mounted> ('Recovery image', mounted at <not mounted> at the time
the backup was created)
Volume size = 750.00 MB
Can recover = Full volume

Application = Registry
Component = Registry (\Registry)


C:\WINDOWS\system32>

Note: if you don't open the command prompt window with administrator privileges, you will see the error message below, if you try to use the wbadmin get versions command.

C:\Users\Cullen>wbadmin get versions
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2013 Microsoft Corporation. All rights reserved.

ERROR - Access denied. You must be a member of the Administrators group or
Backup Operators group to use Windows Server Backup.  In addition, you must
run WBADMIN from an elevated command prompt. (To open an elevated command
prompt, click Start, right-click Command Prompt, and then click Run
as administrator.)


C:\Users\Cullen>

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