Common error messages and their solutions - Amazon WorkSpaces
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Common error messages and their solutions

Microsoft Office must be uninstalled before import. For more information, see Uninstall Office from a PC.

Uninstall the PCoIP Agent. For information about uninstalling the PCoIP agent, see Uninstalling the Teradici PCoIP Software Client for Mac

Disable Windows updates by following the following steps:

  1. Press Windows key + R. Type services.msc, then press Enter.

  2. Right-click on Windows Update, then choose Properties.

  3. Under the General tab, set the Startup type to Disabled.

  4. Choose Stop.

  5. Click Apply, and then choose OK.

  6. Restart your computer.

You must enable Automount. Run the following command in powershell as an administrator.

C:\> diskpart
DISKPART> automount enable

Automatic mounting of new volumes enabled.

WorkSpaces_BYOL account must be enabled. For more information, see Enable BYOL for your account for BYOL using the Amazon WorkSpaces console.

Network interface must be changed to use DHCP. For more information, see Change TCP/IP settings.

Local disk must have enough space and requires you to free up 20 GB or more.

Only the C drive can be present on an Amazon Machine Image that is being used for importing BYOL WorkSpace Image. Remove all other drives, including virtual drives.

Use a Windows 10 or Windows 11 operating system.

System must be unjoined from AD domain. For more information, see Azure Active Directory device management FAQ.

System must be unjoined from Azure domain. For more information, see Azure Active Directory device management FAQ.

Public firewall profile must be disabled. For more information, see Turn Microsoft Defender Firewall on or off.

VMWare tools must be uninstalled. For more information, see Uninstalling and manually installing VMware Tools in VMware Fusion (1014522).

The disk must be smaller than 80 GB. Reduce the disk size.

Volumes must be MBR partitioned for Windows 10 and GPT partitioned for Windows 11. For more information, see Manage disks.

Install all updates and reboot the operating system.

To disable the AutoLogon registry:

  1. Press Windows key + R and type Regedit.exe in the command prompt.

  2. Scroll down to HKEY_LOCAL_Machine\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon

  3. Add a value for DontDisplayLastUserName.

  4. For Type, enter REG_SZ.

  5. For Value, enter 0.

Note

  • The value DontDisplayLastUserName determines whether the logon dialog box displays the username of the last user that logged onto the PC.

  • The value does not exist by default. If it exists, you must set it to 0 or the value of DefaultUser will be wiped and AutoLogon will fail.

RealTimeUniversal Registry Key must be enabled. For more information, see Configure time settings for Windows Server 2008 and later.

Number of bootable partitions must not exceed one.

To remove additional partitions

  1. Press the Windows logo + R keys to open Run box. Enter msconfig and press the Enter key on the keyboard to open the System Configuration window.

  2. Choose the Boot tab from the window and check if the OS you want to use is set to Current OS; Default OS. If it isn't set, choose your desired OS from the window and choose Set as default on the same window.

  3. To delete another partition, choose that partition, then select Delete, Apply, OK.

If the error still shows up, boot your computer from the installation or repair disc, and follow these steps.

  1. Skip the initial languages screen, and then choose Repair your computer on the main install screen.

  2. On the Choose an option screen, choose Troubleshoot.

  3. On the Advanced options screen, choose Command Prompts.

  4. In the command prompt, enter bootrec.exe /fixmbr, then press Enter.

A 64 bit OS image must be used. For more information, see Windows versions supported for BYOL.

The Image Rearm count must not be 0. The rearm feature allows you to extend the activation period for the trial version of Windows. The Create Image process requires that the rearm count be a value other than 0.

To check the Windows rearm count

  1. On the Windows Start menu, choose Windows System, then choose Command Prompt.

  2. In the Command Prompt, enter cscript C:\Windows\System32\slmgr.vbs /dlv, and then press Enter.

  3. To reset the rearm count to a value other than 0. For more information, see Sysprep (Generalize) a Windows installation.

Windows must not have been upgraded from a previous version.

You must uninstall your antivirus software. Run Image Compatibility Checker to get details for the antivirus software to uninstall.

The Legacy BIOS BootMode must be used for Windows 10.For more information, see Boot modes.

To disable the Reserved Storage State

  1. Install all Windows updates and reboot the operating system.

  2. Make sure there are no new updates.

  3. Run either of the following command in Powershell as an administrator.

    • Set-WindowsReservedStorageState -State Disabled
    • DISM.exe /Online /Set-ReservedStorageState /State:Disabled

  4. Reboot the System.

Note

If reserved storage is in use, it might not be disabled, and the following error message is returned: This operation is not supported when reserved storage is in use. Please wait for any servicing operations to complete and then try again later.

The D: Drive is a restricted drive letter for WorkSpaces. Please ensure that D: is not being used or will not be mapped to during launch of an instance from the image.

The image being imported is not supported by the streaming protocol chosen, see Create a BYOL image using the WorkSpaces console.

Memory Integrity is not supported when Credential Guard is enabled on the Windows operating system of a WorkSpace. Memory Integrity was detected with UEFILock which cannot be disabled during image import. Please import an image with UEFILock disabled, see Disable Credential Guard.