Short answer - no, to create a custom image you must start with an unencrypted WorkSpace. Longer answer - https://docs.aws.amazon.com/workspaces/latest/adminguide/encrypt-workspaces.html
There are no workarounds for this, you must start with an unencrypted WorkSpace. Custom Images are not interchangeable with EC2 AMIs.
Is there any workaround to imaging an encrypted workspace?asked 2 months ago
AWS Workspaces disconnecting after create new WorkspaceAccepted Answerasked 2 months ago
How do I reverse Workspace disk performance from deteriorating?asked 7 months ago
Cannot access the workspace using workspace client or RDPasked 6 months ago
Workdocs Install Fails in New Workspace
What is Best Practice configuration for a SECURE single user WorkSpaces VPC?
AWS Workspace Image and bundle creation - original workspace questionAccepted Answerasked 6 months ago
Can I set a security group for each workspace that is launched?asked 8 months ago
In workspace, to maintain the timezone as UTC across all workspaces. I created the GPO settings, suggested by the aws. but the gpo rule is applying on few workspaces but it is not working on othersasked 6 months ago
How to manually back up an Amazon Workspace?asked 3 months ago