Cannot remove stopped container

[friism]

docker -H "npipe:////./pipe//docker_lcow" ps -aq
34efc67b6d1a
8693b3b051b3
bc9fcaa57728
5c9c256eb967
0ecf2d5ec463
42fc2165ae1f
a2d0f894a25e

docker -H "npipe:////./pipe//docker_lcow" rm 34efc67b6d1a

Error response from daemon: driver "lcow" failed to remove root filesystem for 34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824: rename C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824 C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824-removing: Access is denied.

From daemon log:

DEBU[2017-09-17T10:46:40.235184900-07:00] Calling DELETE /v1.31/containers/34efc67b6d1a
DEBU[2017-09-17T10:46:40.247181800-07:00] lcowdriver: remove: id 34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824
DEBU[2017-09-17T10:46:40.247181800-07:00] lcowdriver: remove: id 34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824: layerPath C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824
ERRO[2017-09-17T10:46:40.248180100-07:00] Error removing mounted layer 34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824: rename C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824 C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824-removing: Access is denied.
DEBU[2017-09-17T10:46:40.248180100-07:00] FIXME: Got an API for which error does not match any expected type!!!: rename C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824 C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824-removing: Access is denied.  error_type="*os.LinkError" module=api
ERRO[2017-09-17T10:46:40.248180100-07:00] Handler for DELETE /v1.31/containers/34efc67b6d1a returned error: driver "lcow" failed to remove root filesystem for 34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824: rename C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824 C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824-removing: Access is denied.
DEBU[2017-09-17T10:46:40.249178400-07:00] FIXME: Got an API for which error does not match any expected type!!!: rename C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824 C:\lcow4\lcow\34efc67b6d1ae2ea982f232980a700d2b1895e62c8e161e35d44bfafa742e824-removing: Access is denied.  error_type="*os.LinkError" module=api

.\dockerd.exe -v
Docker version master-dockerproject-2017-09-15, build 5c10698

[rn]

Do you know how you ended up with these containers?
What does hcsdiag list say?

[friism]

They're just normal busybox containers started with docker -H "npipe:////./pipe//docker_lcow" run -ti busybox sh

hcsdiag list
793CB895-B536-4A0F-AE01-EFBC75AFCEAA
    VM,                         Created

C63E61AB-392A-4EC9-995F-B6316ED1B501
    VM,                         Created

[rn]

can't you rm any of them or just the one you tried? There are two VMs hanging around and it might just happen that 34efc67b6d1a is one of them.