Are you seeing Windows Explorer - Error: 0x800703e6 when attempting to use your LTO tapes, new or existing?
ISSUE
There is a known issue within Windows, after Windows 10 Security Patch Version KB5025221 (April 11, 2023); and Windows 11 Security Patch Version KB5023706 (March 14th 2023). The issue affects LTFS capabilities on writing data when using Windows Explorer, when using IBM SDE version 2.4.5.1. Note that Windows Server 2016 and 2019 are not effected by this bug.
RECOMMENDED ACTION
It is recommended to upgrade to the latest SDE version [2.4.8.0 released 30th June 2025]
MITIGATION (using SDE version 2.4.5.1)
Uninstall the security patches:
- KB5025221
- KB5023706
Please reference this article from Microsoft on uninstalling Windows Updates:
WORKAROUND (using SDE version 2.4.5.1)
If it isn't possible for you or your organisation to perform the uninstall of the updates we've found that for most customers the workaround of installing [TeraCopy] has been successful for them. Please note that Symply does not support TeraCopy.
Symply encourages users to move to using LTFS on the Windows OS to updated to the latest version of SDE, 2.4.8.0 released 30th June 2025.
If you have any questions please submit a [support ticket]