Thanks John but it doesn't work.

My temporary folder is already on my E drive.

Any solution?

You might try File>Properties>Video down at the bottom is temp render.

You might try File>Properties>Video down at the bottom is temp render.

Thanks david-tu

Unfortunately it also doesn't work. The property you point out is for prerendered file not for temp file created during final render.

Not on 14, but have you looked at all the tabs of the ProRes render template? We're running out of locations here. 

Nothing under Prores render template as well

I have been looking through Internal Preferences as well but I can't find anything.

Vegas is probably using the Windows Temp location. Start here.

Aren't the temp mov files always written to the Save path? The requirement for >2X the render space hasn't changed afaik.

Thanks John, nice workaround. but I would expect Magix to let the user decides where to save this temporary file.

@Musicvid

Why does Vegas has to save a temp file when rendering mov file? Other software (Resolve for ex.) can write the file directly.

If you render a large ProRes file without changing the Windows temp location, and your C: drive fills up, what happens? Assuming it's not nice, report it and then it will get into the devs' bug tracker and maybe get changed.

...nice workaround. but I would expect Magix to ...

This comes in contradiction, in my opinion, to the

... My C drive is quite small and pretty full.

If your SYSTEM drive is small&full your first item on the checklist is supposed to be transferring everything non-system OUT OF IT.

Your Documents, Music, everything TEMP... is supposed to be away from C:
Yesterday.
This point is absolutely serious: move everything 'non-system' out of C:
 

Wouldn't Magix expect users to set up and configure their systems to operate normally, in the first place (big smile here) ?

This point is absolutely serious: move everything 'non-system' out of C:

IMO, Windows temp folder is part of the system, isn't it?

I'm curious to know how many user move their windows temp folder to another drive... Few, I guess...

Wouldn't Magix expect users to set up and configure their systems to operate normally, in the first place (big smile here) ?

No need for the sarcasm. Setting a custom system temp folder location is not a "normal" operation that regular users can be expected to know and do.

Yes, we have a bug in that our ProRes render is not honoring the temp-file preference. We'll be fixing that as soon as possible. In the meantime, here is some advice from one of our dev team:

There is an immediate "fix" for this the customer can perform. It is a general Microsoft Windows system management thing.

HEVC and ProRes rendering operations reference the Windows environment variable "TMP" to determine the location to use temporary files.

The "TMP" variable can be changed to specify a different location than the default on drive "C".

From Windows, Control Panel,
Click "System and Security",
Click "System",
Click "Advanced system settings",
Click "Environment Variables...",
Within the "User variables" section of the dialog,
Click to highlight the variable "TMP"
Click "Edit..."
In the new dialog that appears,
Click "Browse Directory ..." and navigate to the desired folder to be used for temporary files.
Close each dialog that has been opened in succession clicking "OK" for each.

Keep in mind that this "fix" will affect more than VEGAS Pro. Any other software that uses the same "Windows environment varialbe 'TMP'" will also be affected by this procedure.