Mount @ Windows 10 - Solving speed issues with big multimedia files - V2

Remake of Mount @ Windows 10 - Solving speed issues with big multimedia files
Thanks to @amaklp


To avoid delays when using mounted remote in Windows 10, specially if it contains big multimedia files, you can:

Recomended approach: use MyCommander -
(free, portable, w32/64, modern=2017, mouse support, GUI; but no source code ;-(

Other ways:

a) Avoid right clicking in files. As for example, if you want to rename, just left click then rename. If you want to copy/paste, use ctrl-c then ctrl-v.

b) For moving, use an explorer alternative with at least two pannels, so click and move. Free (as in free beer) ones, portables, such as Explorer++, Q-Dir, FreeComander. There are many alternatives, YMMV (see for example In any of those, right clicks will imply delays

c) Use CMD commands and/or pure old style console file managers such as free portable Far Commander (or if you like it more, Midnight Commander). No delays at all (copy/download operations aside) - unfortunately, no mouse friendly ;-( and they have they own learning curve. The less complex to learn for me is Brian Havard File Commander
(shareware). See here for information on the alternatives

d) for experts, heavy users, there is the option to modify windows (explorer) file handlers and behaviour. See how to for details.

Not evaluated alternative file managers:
mucommander - promising -
onecommander - promising -
necromancer DOS navigator -

For point d, as for the long read:

When using explorer in Windows 10 (except N version) to access a directory mounted with rclone, if there are big/many multimedia files, response delays are to be expected.

This is due to explorer working to show thumbnails and also length, date and other metadata. Hidding the metadata columns is not a workaround.

Thumbnails issue can be solved configuring the options of explorer (show icons not thumbnails). Solving the other issue needs touching the registry.

Note that it is not a windows bug, it is a feature but in that cases it loads the system; while it can be noticed when using local files, it becomes unbearable when files are big and not local, as usually the feature implies the need to read the whole file… or at least a big part of it. And if there are many files in a folder, the issue is amplified.

Workarounds: see above.

It is also possible to “adjust” windows explorer behaviour:

a) configure explorer to use icons no thumbnails
b) modify handlers behaviour (requires touching the registry)

SETUP for Windows 10 (all but N version):
You will loss duration and date information in the explorer view.

Registry changes (beware, do this only if you know what you do; if properly done works ok but badly done I take no responsability) needed*



Modify HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\PropertySystem\PropertyHandlers.mp4



change .mp4 key value to {#f81b1b56-7613-4ee4-bc05-1fab5de5c07e}
(this requires to take ownership of SystemPropertyHandlers)

(EXAMPLE FOR .mp4 files. For other files, proceed the same way for each of the extensions of the files, adding a # in front of the key contents)
(you can replace # by your favorite char, it is just a placeholder allowing to later reverse changes)
Reboot, and ready!

To revert

Remove # in

and in

.mp4 key value {#f81b1b56-7613-4ee4-bc05-1fab5de5c07e}
(needs also reboot)

Enjoy :grinning:

For W7 and W8

For taking ownership

right click on SystemPropertyHandlers >> Permissions, click on Advanced, at the top it will say: Owner: Trusted installer [change], click change. type:


into the blank box and click Ok, click ok to return to the permissions dialog. Select Administrators and make sure that ‘Full Control’ is checked. Click Ok to return to regedit.

Additional tip
If you wish to change windows property handlers by others, it is possible. see

Still trying a way to avoid rebooting. Next idea is killing&restarting explorer and see if no reboot is needed…

Most of the black magic comes from knowledge shared byín/?ws=usercard-mini


That is a great document - thank you :smiley:

Do you think it is discoverable enough here? Maybe we could put a link in the mount docs? Or put it on the rclone wiki? Or both?

Thanks, second version was better...

We start to think along same lines... :wink:

In Mount @ Windows 10 - Solving speed issues with big multimedia files I proposed you

a) to delete the old howto
b) to write a bit in mount doc ;-), and point to the howto V2

Wiki is also a good idea!


I think the wiki would be a better place for this doc as it is easier to update. Can you write it there and I'll put a link from the mount docs something like

For hints and tips with speeding up Windows Explorer see the wiki

Or something like that.

Will do but need some time...

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