have to use SaveAs
OK- thanks - even the smarter people than me are mystified by this behavior, so we’ll probably ask more useless questions until we get to the right one… so other saves from Rhino work as expected, Export, ViewCaptureToFile , even a Grasshopper document would be worth a try ?
Also, please run SystemInfo and post the results… you never know what plug-in might be getting involved somehow.
Does anything work differently if you run Rhino in Safe Mode, btw?
To start Rhino in Safe Mode: Windows start menu, type in ‘Rhinoceros’ and look for the ‘Rhinoceros in Safe Mode’ entry.
-Pascal
other saves work as intended, safe mode still read only, thanks
Rhino 6 SR27 2020-6-11 (Rhino 6, 6.27.20163.15081, Git hash:master @ 8c9f18774d0fe24946068d123d78712d7a17f847)
License type: Commercial, build 2020-06-11
License details: Stand-Alone
Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: RGILMORE
Hybrid graphics system.
Primary display: Intel(R) UHD Graphics P630 (Intel) Memory: 1GB, Driver date: 9-25-2019 (M-D-Y).
Primary OpenGL: NVIDIA Quadro P1000 (NVidia) Memory: 4GB, Driver date: 4-7-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 442.92
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 4-7-2020
Driver Version: 26.21.14.4292
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 GB
Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp "Commands" 6.27.20163.15081
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp "Renderer Development Kit"
C:\Program Files\Rhino 6\Plug-ins\RhinoScript.rhp "RhinoScript"
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp "Rhino Render"
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp "RDK_EtoUI" 6.27.20163.15081
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp "Renderer Development Kit UI"
C:\Users\monke\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\PanelingTools (6caed836-bc06-4ebc-b1fd-e10886a0dc94)\2018.12.17.906\PanelingTools.rhp "PanelingTools"
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp "Snapshots"
C:\Program Files\Rhino 6\Plug-ins\IronPython\RhinoDLR_Python.rhp "IronPython" 6.27.20163.15081
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp "RhinoCycles" 6.27.20163.15081
C:\Program Files\Rhino 6\Plug-ins\Grasshopper\GrasshopperPlugin.rhp "Grasshopper" 6.27.20163.15081
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp "Toolbars" 6.27.20163.15081
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp "3Dconnexion 3D Mouse"
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp "Displacement"
C:\Users\monke\AppData\Roaming\McNeel\Rhinoceros\packages\6.0\ColorPicker\6.0.0\ColorPicker.rhp "ColorPicker"
C:\Users\monke\AppData\Roaming\McNeel\Rhinoceros\packages\6.0\raytraced-materials\0.1.3+v6.15\RaytracedMaterials.rhp "Raytraced Materials" 0.1.3.0
C:\Users\monke\AppData\Roaming\McNeel\Rhinoceros\packages\6.0\SectionTools\2019.7.29+584\SectionTools.rhp "SectionTools"
Could you try going to the “Options/Files” page and un check the “Enable file locking” option. When this is done try opening and saving a file and let me know if it makes a difference. I would not recommend leaving this option off as a long term to your problem but am interested to know if it affects the save behavior.
Thanks for the report and details - we can repeat this here now.
RH-59194 Files read-only if file locking is off
-Pascal
I am having the same issue. I have the latest version of Rhino 7. I am not able to save my file.

Hi -
Do you have this issue with any file?
Please run the Rhino SystemInfo command and copy-paste the result here.
-wim
Rhino 7 SR7 2021-6-9 (Rhino 7, 7.7.21160.05001, Git hash:master @ d2161989109d5dacba531310b5d345ce6f4da9f6)
License type: Educational Lab License, build 2021-06-09
License details: LAN Zoo Network Node
Windows 10.0.19042 SR0.0 or greater (Physical RAM: 16Gb)
Computer platform: DESKTOP
Standard graphics configuration.
Primary display and OpenGL: NVIDIA Quadro K2200 (NVidia) Memory: 4GB, Driver date: 5-6-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 462.59
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
Secondary graphics devices.
Citrix Indirect Display Adapter (Citrix Systems Inc.) Memory: 0MB, Driver date: 1-23-2019 (M-D-Y).
> External USB display device with 8 adapter port(s)
- There are no monitors attached to this device!
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)
Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 5-6-2021
Driver Version: 27.21.14.6259
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB
Rhino plugins that do not ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Karamba\License\Karamba3D_LicensePlugin_Rhino7.rhp “Karamba3DLicense”
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V7\VRayForRhino.rhp “V-Ray for Rhino”
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.7.21160.5001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.7.21160.5001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.7.21160.5001
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.7.21160.5001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.7.21160.5001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
My machine is managed by my school - I will see if this can be removed. Is this what is causing the issue?
Not necessarily, but I believe we have had reports where disabling that helped in similar cases.
Hello All, Rhino 7 SR21 2022-7-27 (Rhino 7, 7.21.22208.13001) - Windows 10 as of 8-12-2022 I keep getting the “Save As” error 'cuz “File opened in read-only mode”. I followed this thread and tried to uncheck the File locking as per RH-59194 post in YouTrack. Any updates on how to fix it or I’m doing it wrong? I reinstalled it twice already but nothing seems to work so far - thanks.
Try checking the Enable File locking then uncheck the Display read-only open warning, then uncheck the Enable.
Thanks - I did what you suggested Japhy above, and problem persists. I’ve uninstalled my Rhino 7 and download the Trial version of 7 as well but the same issue is happening. What I just noticed is the following: I opened the file, work on it and I can save it once, then keep working on it but cannot save it a second time (Ctrl+S), and that’s when the “File Save Error” warning shows up and check the images below: If go to the file, right click>>> Properties>>>Security, The Permissions “disappear” after I try to save the same file a second time.
To make matters worse, If I keep saving the file a second time with another name so that to avoid the “File Save Error” the Group or user names: also change, and the check marks become darker.
So, the file needs to be saved “analogously” with different name.
Not sure who can shade some light into this, thanks.

This seems like a Windows User Control issue.
Lets try SR20 before messing with the User Account Control.
I’m on SR24 and also have this problem. I’ve noticed that the .3dmbak file saved alongside the main file can be opened without issue. I’ve taken to opening those when the main file becomes locked and then saving as with a new filename.
I have yet to try every fix mentioned here as I’ve been coping well enough using the backups. I should mention that this was an issue before upgrading to SR24 (I don’t know what version I upgraded from) but not when I originally installed R7 on this computer maybe two years ago.
Here’s systeminfo in case it’s helpful:
Rhino 7 SR24 2022-11-4 (Rhino 7, 7.24.22308.15001, Git hash:master @ cb2ad12922ceb989b185972675bb705a00abb97d)
License type: Educational, build 2022-11-04
License details: Cloud Zoo
Windows 10 (10.0.19044 SR0.0) or greater (Physical RAM: 7.9Gb)
Computer platform: LAPTOP - Plugged in [100% battery remaining]
Standard graphics configuration.
Primary display and OpenGL: Intel(R) HD Graphics 5500 (Intel) Memory: 1GB, Driver date: 12-27-2018 (M-D-Y). OpenGL Ver: 1.1.0
> Integrated graphics device with 3 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Secondary graphics devices.
DisplayLink USB Device (DisplayLink) Memory: 0MB, Driver date: 8-11-2021 (M-D-Y).
> External USB display device with 2 adapter port(s)
- Secondary monitor attached to adapter port #0
DisplayLink USB Device (DisplayLink) Memory: 0MB, Driver date: 8-11-2021 (M-D-Y).
> External USB display device with 0 adapter port(s)
- There are no monitors attached to this device. Laptop lid is probably closed
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: Off
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 1.1 (software driver)
Anti-alias mode: None
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High
Vendor Name: Microsoft Corporation
Render version: 0.0
Shading Language: Not supported
Driver Date: NA
Driver Version: NA
Maximum Texture size: 1024 x 1024
Z-Buffer depth: 32 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 64 MB
Rhino plugins that do not ship with Rhino
C:\Users\bryce_000\Downloads\elefront422\elefront421\ElefrontProperties.rhp “ElefrontProperties” 1.0.0.0
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
You’ve got issues here. It appears you are running off a 1 GB video card with a 2018 driver (OpenGL1.1). Is there another video card on your machine that isn’t functioning properly? Are up to date on your windows updates?





