diff --git a/doc/bugs/tests_fail_on_windows__58___retrieveKeyFile_resume.mdwn b/doc/bugs/tests_fail_on_windows__58___retrieveKeyFile_resume.mdwn
new file mode 100644
index 0000000000..a55abbd983
--- /dev/null
+++ b/doc/bugs/tests_fail_on_windows__58___retrieveKeyFile_resume.mdwn
@@ -0,0 +1,23 @@
+### Please describe the problem.
+
+
+```
+      retrieveKeyFile:                                  FAIL
+          Exception: .git\annex\objects\fc0\296\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key: DeleteFile "\\\\?\\C:\\Users\\runneradmin\\.t\\main2\\.git\\annex\\objects\\fc0\\296\\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key\\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key": permission denied (Access is denied.)
+        fsck downloaded object:                           OK (0.01s)
+        retrieveKeyFile resume from 33%:                  FAIL
+          Exception: .git\annex\tmp\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key: openBinaryFile: permission denied (Permission denied)
+        fsck downloaded object:                           OK (0.01s)
+        retrieveKeyFile resume from 0:                    FAIL
+          Exception: .git\annex\tmp\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key: openFile: permission denied (Permission denied)
+        fsck downloaded object:                           OK (0.01s)
+cp: cannot create regular file '.git\annex\tmp\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key': Permission denied
+        retrieveKeyFile resume from end:                  FAIL
+          Exception: .git\annex\objects\fc0\296\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key: DeleteFile "\\\\?\\C:\\Users\\runneradmin\\.t\\main2\\.git\\annex\\objects\\fc0\\296\\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key\\SHA256E-s1048576--c347f274df214671e3bebb6674cc5d2e6c226d8358a416859d5fc3c79a08eb1f.this-is-a-test-key": permission denied (Access is denied.)
+        fsck downloaded object:                           OK (0.01s)
+        removeKey when present:                           OK (0.09s)
+```
+
+I think this fail is relatively recent since [5 days ago](https://github.com/datalad/git-annex/actions/runs/746941168) is green for git-annex (but red for datalad). Overall [today's log](https://github.com/datalad/git-annex/runs/2377452030?check_suite_focus=true) for 8.20210331-ge3de27dcc says `126 out of 833 tests failed (599.24s)` 
+
+not sure if relates to [ubuntu build fails](https://git-annex.branchable.com/bugs/fresh_3_tests_fails-_openBinaryFile__58___resource_busy/)  which seems to be less wild, so filing separately