Audacity Won't Let Me Use The D Drive

[inner parcel]

Hi, this is a really annoying thing that seriously slows down my audio processing that's been affecting me for months now. I edit really large audio files (about 3-4 hours in length) and this obviously creates huge amounts of temporary files, especially when I use a macro to noise gate, truncate silence and change tempo before editing. My C drive has 70 gigabytes free, and it'll fill up fast. I want to use my D drive, which has much more space, but that's not working here. If I change my preference for where temporary files are saved and try to use any effects, I get the following error:

Is there any way to fix this, or am I going to need to continue using the C drive?

[craggy pond]

Have you tried just moving the project to your D: drive? Also note that Audacity retains a lot of UNDO information. If you open a project and amplify everything by a factor of .001, the storage space will double. If you don't need all of that UNDO information, for example right after running your macro, you could close the project and re-open it. For more information regarding this particular error, including damaged projects, see: https://forum.audacityteam.org/viewtopic.php?f=46&t=126102

[inner parcel]

The latter is how I've been coping so far, but it takes a lot of time to re-import everything which is a little time consuming. For the former, this might sound dumb, but how would I do that? 😅 That'd likely be the solution, I'm just not sure how to change the default location of the project itself

[craggy pond]

You would start by saving the project. Then close it. On Windows File Explorer, locate the .aup3 project file and do a right-click drag over to your D: drive, then select "MOVE": Windows copies the project to D:, then deletes the original from the C: drive.

[inner parcel]

Right, I'll give it a shot in the future! Thank you