The problem occurs on Windows 10 (64-bit) Guest only. To isolate the issue, I have created a new VM on Windows 10 (64-bit) Host and launched Windows Update in the Windows 10 (64-bit) Guest.Metadata staging failed, result=0x80070057 for container '{D397268A-724C-B4EF-D641-C9234BA2948B}' Metadata staging failed, result=0x8007000D for container '{00000000-0000-0000-FFFF-FFFFFFFFFFFF}' Metadata staging failed, result=0x80070057 for container '{ED17222B-F1C7-537F-9546-745658ADE2E3}'
There are no such events on Windows 10 (64-bit) Host and Windows 10 (32-bit) Guest.
VirtualBox version: 6.0.12.
The problem exists both with installed Guest Additions and without Guest Additions.