Here is a log from trying to uninstall the object enabler for Civil 3D.
[4C9C:4888][2021-09-16T16:03:29]i326: Removed dependency: {9d04fc1e-4100-4390-1001-39caef5b2105} on package provider: {6979BD25-4100-479A-1001-72684B592105}, package C3DOE
[4C9C:4888][2021-09-16T16:03:29]i329: Removed package dependency provider: {6979BD25-4100-479A-1001-72684B592105}, package: C3DOE
[4C9C:4888][2021-09-16T16:03:29]i301: Applying execute package: C3DOE, action: Uninstall, path: (null), arguments: ' ALLUSERS="1" ARPSYSTEMCOMPONENT="1" MSIFASTINSTALL="7" ADSK_SETUP_EXE="1"'
[4C9C:4888][2021-09-16T16:03:32]e000: Error 0x8007064c: Failed to uninstall MSI package.
[4C9C:4888][2021-09-16T16:03:32]e000: Error 0x8007064c: Failed to execute MSI package.
[3544:0808][2021-09-16T16:03:32]e000: Error 0x8007064c: Failed to configure per-machine MSI package.
[3544:0808][2021-09-16T16:03:32]i319: Applied execute package: C3DOE, result: 0x8007064c, restart: None
[3544:0808][2021-09-16T16:03:32]e000: Error 0x8007064c: Failed to execute MSI package.
[4C9C:4888][2021-09-16T16:03:32]i323: Registering package dependency provider: {6979BD25-4100-479A-1001-72684B592105}, version: 13.3.2105.0, package: C3DOE
[4C9C:4888][2021-09-16T16:03:32]i325: Registering dependency: {9d04fc1e-4100-4390-1001-39caef5b2105} on package provider: {6979BD25-4100-479A-1001-72684B592105}, package: C3DOE
[4C9C:4888][2021-09-16T16:03:32]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{9d04fc1e-4100-4390-1001-39caef5b2105}, resume: ARP, restart: None, disable resume: No
[4C9C:4888][2021-09-16T16:03:32]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{9d04fc1e-4100-4390-1001-39caef5b2105}, resume: ARP, restart initiated: No, disable resume: No
[3544:0808][2021-09-16T16:03:32]i399: Apply complete, result: 0x8007064c, restart: None, ba requested restart: No
[3544:0BCC][2021-09-16T16:03:32]e000: 0x8007064c - The installation source for this product is not available. Verify that the source exists and that you can access it.
Mike Kingdon
Civil 3D Zealot
