Hi,
>> There are no other drives on this machine
All in short, your hardware does not meet your needs/your requirements 😉
If you do have projects that need to use temp-files (you can't disable using temp-files in AutoCAD) and your local hard-disk does not have enough space, then you need to either remove files from that disk to get the place or build in a larger or second drive.
Comparison: if your car runs max 80km/h but you need to go with 130km/h (your larger projects) it's up to you to change to a new car or modify your exiting one 😉
To some of your statements:
>> The newly created AutoCAD temp file was 775,xxxKB in two and a half hours.
I restart AutoCAD every two hours at least (sometimes maybe 3 hours, but not if I have issues then)
From your first post
>> We've been having this problem for a couple years now
From the second post
>> This is getting pathetic.
You are knowing that your hard-disk does not have enough space for years now (means you lost a lot of working time and so a lot if money) ... and you don't change anything? Sorry for my wording, but this is getting pathetic 😉
A simple hard-disk or ssd are just a few bucks, compared to your costs ....
>> We already tried changing the file path to a different folder yesterday
If the folder is on the same drive, why should that help anything?
>> I can't find where they are referring to at all.
>> There is no "Select Columns"
In taskmanager change to tab "Details" and then right-click on one of the column-header ==> select columns ==> there you get the option to add columns to the list of processes.

>> Where can I disable creating temp files for AutoCAD?
You can't, there is no option for disabling temp-files
And from your screenshot in post 5 ... don't disable the creation of the BAK file, it is sometimes the last chance to recover data if your dwg-file is defect.
- alfred -
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Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ...
blog.ish-solutions.at ...
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CDay 2026------------------------------------------------------------------------------------
(not an Autodesk consultant)