QCAD crashes on file save

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lloydster
Newbie Member
Posts: 4
Joined: Wed Jan 28, 2026 2:24 am

QCAD crashes on file save

Post by lloydster » Wed Jan 28, 2026 5:43 am

MY OLD VERSION OF QCAD PROFESSIONAL STARTED CRASHING ON FILE SAVE
I HAVE PURCHASED AND DOWNLOADED A NEW VERSION OF QCAP PRO AND INSTALLED IT AND STILL CRASHES ON FILE SAVE OR SAVE AS.
64 BIT SYSTEM ON MSI INSTALL
HAVE BEEN USING THE SYSTEM FOR 4 YEARS NOW WITH NO ISSUES
PLEASE ADVISE OF ANYTHING I CAN DO
I HAVE ATTACHED SOME SCREEN SHOTS OF WHAT HAPPENS AND THE FILES TESTED ON
Attachments
stamfords template 2801.dxf
(31.66 KiB) Downloaded 9 times
SWAN EVO profile.dxf
(557.77 KiB) Downloaded 8 times
Screenshot 2026-01-28 153711.jpg
Screenshot 2026-01-28 153711.jpg (230.2 KiB) Viewed 4205 times
Screenshot 2026-01-28 153642.jpg
Screenshot 2026-01-28 153642.jpg (229.03 KiB) Viewed 4205 times
Screenshot 2026-01-28 153423.jpg
Screenshot 2026-01-28 153423.jpg (174.73 KiB) Viewed 4205 times

CVH
Premier Member
Posts: 5121
Joined: Wed Sep 27, 2017 4:17 pm

Re: QCAD CRASHES ON FILE SAVE

Post by CVH » Wed Jan 28, 2026 6:39 am

Hi, and welcome to the QCAD forum.

More a topic for the QCAD Troubleshooting and Problems forum. :wink:
All in upper case is considered as shouting online.
  • "It is not proper netiquette to TYPE IN ALL CAPS!"

Your drawings and files look sane.
The 'Save As' dialog shows us that you are saving to the 'Windows' folder on drive C:

Isn't that a folder inside the protected area guarded by the Windows UAC?
You will need Admin rights to write there.

It is already a better idea to store user data files in newly created user folders.
Not advisable but you could attempt to start QCAD with Admin rights.

Regards,
CVH

lloydster
Newbie Member
Posts: 4
Joined: Wed Jan 28, 2026 2:24 am

Re: QCAD crashes on file save

Post by lloydster » Thu Jan 29, 2026 1:05 am

Sorry about the Caps unintentional
Ran Qcad as administrator but no difference.
It crashes on file open as well as file save
any other ideas to get around this problem

CVH
Premier Member
Posts: 5121
Joined: Wed Sep 27, 2017 4:17 pm

Re: QCAD crashes on file save

Post by CVH » Thu Jan 29, 2026 2:04 am

Perhaps it is an issue with the latest release.
So far this is the first report of its kind.

It is known that resetting your config file can solve weird problems.
In the latest edition that can be done from within the application, under the Misc menu.
Otherwise see the tutorial: Resetting the QCAD Configuration

You might also have a look at:
Application preferences .. File .. Open/Save .. Use system file Dialog

If all fails then perhaps a clean install may help.
The config file is not affected by this, remove it manually.
Re-download the installation package just to be sure.

In any case, I would not store my drawing files in the system folders.

Regards,
CVH

lloydster
Newbie Member
Posts: 4
Joined: Wed Jan 28, 2026 2:24 am

Re: QCAD crashes on file save

Post by lloydster » Thu Jan 29, 2026 4:00 am

This issue occurred on my previous install which i have been running for 4 years no problem.
I uninstalled that and reinstalled the new version of the app I purchased.
Have reset config within App but no change still crash
I have also check my virus controller and Qcad is a trusted App

Application preferences .. File .. Open/Save .. Use system file Dialog
this was the setting already
I back my files up to cloud

CVH
Premier Member
Posts: 5121
Joined: Wed Sep 27, 2017 4:17 pm

Re: QCAD crashes on file save

Post by CVH » Thu Jan 29, 2026 4:45 am

If both the older suddenly and then the newer release show the same problem ...
... I suspect that it has to do with the location of the files.

What changed just before the older install started to fail?

You can attempt to create a dummy drawing and save that to a 'normal' and local user folder.
Then you might do the same and save it in the cloud.

Last problem would then be the latest backup copy in the cloud.
But I think that this doesn't concerns QCAD, it is probably more system related.

Regards,
CVH

lloydster
Newbie Member
Posts: 4
Joined: Wed Jan 28, 2026 2:24 am

Re: QCAD crashes on file save

Post by lloydster » Mon Feb 02, 2026 2:42 am

Thanks for your help.
I have located the problem within the system to a windows update issue which clashed with Qcad and have now restored to a date prior to the crash and Qcad resumed working.

Unluckily i have purchased a new copy of Qcad Pro that wasn't required.

jshay410
Registered Member
Posts: 1
Joined: Tue Feb 03, 2026 3:21 pm

Re: QCAD crashes on file save

Post by jshay410 » Tue Feb 03, 2026 3:29 pm

Do you know what date you restored to? My program is also crashing on save now and I've done the reset, and uninstall and re-install process mentioned in the thread. Thanks in advance!

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