topic Re: I cannot install Oneapi Forran compiler on windows 11 25H2 in Intel® Fortran Compiler

I cannot install Oneapi Forran compiler on windows 11 25H2

Ady46 — Fri, 30 Jan 2026 14:40:17 GMT

01/30/2026 11:36:49:587 : 19908 : MESSAGE : C:\Program Files (x86)\Intel\oneAPI\Installer\installer.exe is run with arguments: --log-dir C:/Users/Ady/AppData/Local/Temp/intel_oneapi_installer/2026.01.30.11.36.45.699 --product-id intel.oneapi.lin.fortran-compiler.product --product-ver 2025.3.2+24 --package-path C:\Users\Ady\AppData\Local\Temp\intel-fortran-compiler-2025.3.2.26_2026-01-30_11-36-45\packages
01/30/2026 11:36:49:587 : 19908 : MESSAGE : Installer is started in GUI mode
01/30/2026 11:36:49:587 : 19908 : MESSAGE : Installer executable location is C:\Program Files (x86)\Intel\oneAPI\Installer\installer.exe, version is 4.4.5.2352
01/30/2026 11:36:49:587 : 19908 : MESSAGE : Package manager executable location is C:\Program Files (x86)\Intel\PackageManager\1.0\packagemanager.exe, version is 4.4.5-2352
01/30/2026 11:36:49:587 : 19908 : MESSAGE : Product is set to intel.oneapi.lin.fortran-compiler.product,v=2025.3.2+24. Mode is set to install.
01/30/2026 11:36:49:887 : 37096 : MESSAGE : PreRequisite for other install successfully checked
01/30/2026 11:36:49:891 : 37096 : MESSAGE : PreRequisite for other Intel install successfully checked
01/30/2026 11:36:49:893 : 37096 : MESSAGE : All checks for preRequisite for supported operation system are passed
01/30/2026 11:36:50:652 : 37096 : MESSAGE : PreRequisite for admin rights successfully checked
01/30/2026 11:36:50:652 : 37096 : MESSAGE : PreRequisite for temporary folder successfully checked
01/30/2026 11:36:50:652 : 37096 : MESSAGE : PreRequisite for host architecture successfully checked
01/30/2026 11:36:56:236 : 37524 : MESSAGE : PreRequisite for Instance Msi successfully checked
01/30/2026 11:37:02:193 : 37524 : MESSAGE : PreRequisite for free disk space passed
01/30/2026 11:37:02:197 : 37524 : MESSAGE : PreRequisite for permissions passed
01/30/2026 11:37:02:198 : 37524 : MESSAGE : PreRequisite for empty dir is passed
01/30/2026 11:37:02:198 : 37524 : MESSAGE : PreRequisite for other install successfully checked
01/30/2026 11:37:02:198 : 37524 : MESSAGE : PreRequisite for other Intel install successfully checked
01/30/2026 11:37:02:243 : 37524 : MESSAGE : PreRequisite for Visual Studio running with id = [visualStudioRunning.2022] passed
01/30/2026 11:37:02:243 : 37524 : MESSAGE : PreRequisite for Visual Studio running with id = [visualStudioRunning.OtherUsers] passed
01/30/2026 11:37:02:257 : 19908 : MESSAGE : ISIP consent status is 'No'
01/30/2026 11:37:02:258 : 19908 : MESSAGE : Product installation directory is C:\Program Files (x86)\Intel\oneAPI
01/30/2026 11:37:02:258 : 19908 : MESSAGE : Product download size required: 301788821 bytes
01/30/2026 11:37:02:258 : 19908 : MESSAGE : Product installation size required: 1348046053 bytes
01/30/2026 11:37:02:258 : 19908 : MESSAGE : Product will be (un)integrated with the following IDEs:
01/30/2026 11:37:02:258 : 19908 : MESSAGE : Microsoft Visual Studio* 2022.
01/30/2026 11:37:02:259 : 19908 : MESSAGE : End of IDE list.
01/30/2026 11:37:02:270 : 37524 : MESSAGE : Graph State Dump.
----------------------------------------------------------------------------------------------------
intel.oneapi.lin.fortran-compiler.product,v=2025.3.2+24, Enabled, Selected, Not Installed
intel.oneapi.win.ifort-compiler,v=2025.3.2+833, Enabled, Selected, Not Installed
intel.oneapi.win.compilers-common,v=2025.3.2+833, Enabled, Selected, Not Installed
intel.oneapi.win.compilers-common-runtime,v=2025.3.2+833, Enabled, Selected, Not Installed
intel.oneapi.win.openmp,v=2025.3.2+833, Enabled, Selected, Not Installed
intel.oneapi.win.oneapi-common.vars,v=2025.3.1+16, Enabled, Selected, Not Installed
intel.oneapi.win.oneapi-common.vs2019_links,v=2025.3.1+16, Disabled, Not Selected, Not Installed
intel.oneapi.win.oneapi-common.vs2022_links,v=2025.3.1+16, Enabled, Selected, Not Installed
intel.oneapi.win.oneapi-common.vs2026_links,v=2025.3.1+16, Disabled, Not Selected, Not Installed
intel.oneapi.win.oneapi-common.licensing,v=2025.3.1+16, Enabled, Selected, Not Installed
intel.oneapi.win.oneapi-common.oneapi-vars,v=2025.3.1+16, Enabled, Selected, Not Installed
intel.oneapi.win.umf,v=1.0.3+18, Enabled, Selected, Not Installed
intel.oneapi.win.tcm,v=1.4.1+444, Enabled, Selected, Not Installed
intel.oneapi.win.cpp-compiler.ide.vcperflib_vsix_vs2019,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.cpp-compiler.ide.vcperflib_vsix_vs2022,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.cpp-compiler.ide.vcperflib_vsix_vs2026,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.cpp-compiler.ide.vcperflib_bt_vs2019,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.cpp-compiler.ide.vcperflib_bt_vs2022,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.cpp-compiler.ide.vcperflib_bt_vs2026,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.regupdater_nl,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.mpi.runtime,v=2021.17.2+92, Enabled, Selected, Not Installed
intel.oneapi.win.ifort-compiler-ide-reg,v=2025.3.2+833, Enabled, Selected, Not Installed
intel.oneapi.win.ifort-compiler.ide.vs2019,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.common_vs_2019,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.utils_vs_2019,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.common,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.ifort-compiler.ide.vs2022,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.compilers-common.ide.common_vs_2022,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.compilers-common.ide.utils_vs_2022,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.ifort-compiler.ide.vs2026,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.common_vs_2026,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.utils_vs_2026,v=2025.3.1+14, Disabled, Not Selected, Not Installed
intel.oneapi.win.compilers-common.ide.docs,v=2025.3.1+14, Enabled, Selected, Not Installed
intel.oneapi.win.compilers-common.ide.docs-fort,v=2025.3.1+14, Enabled, Selected, Not Installed
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01/30/2026 11:37:02:287 : 19908 : MESSAGE : ----------------------------------------------------------------------------------------------------
01/30/2026 11:37:02:287 : 19908 : MESSAGE : Anonymous statistics fields:
01/30/2026 11:37:02:287 : 19908 : MESSAGE : EventId = 'install-min'
01/30/2026 11:37:02:287 : 19908 : MESSAGE : EventKey = 'S3UqiDQDs0egwqo7y1z17w=='
01/30/2026 11:37:02:287 : 19908 : MESSAGE : EventTime = ''
01/30/2026 11:37:02:287 : 19908 : MESSAGE : Id = 'intel.oneapi.lin.fortran-compiler.product,v=2025.3.2+24'
01/30/2026 11:37:02:287 : 19908 : MESSAGE : Message = '{ \"product_name\":\"[Windows] Intel® Fortran Compiler 2025.3.2\", \"lic_type\":\"\", \"support_code\":\"\", \"install_status\":\"4611\", \"product_tag\":\"\" }'
01/30/2026 11:37:02:287 : 19908 : MESSAGE : ProductId = '[Windows] Intel® Fortran Compiler 2025.3.2'
01/30/2026 11:37:02:287 : 19908 : MESSAGE : ---------------------------

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

Steve_Lionel — Fri, 30 Jan 2026 15:15:03 GMT

I don't see any errors in that log. What message did it give you when you tried to install?

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

Ady46 — Fri, 30 Jan 2026 15:31:41 GMT

"An error has been encountered during the installation process. Detailed installation log files are located under 'C."

That is the log file I have attached.

I suspect that Microsoft downgraded the programs installation under x86 on this version of windows 11 25H2.

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

Steve_Lionel — Mon, 02 Feb 2026 16:30:09 GMT

Reboot and try again. I have successfully installed with 25H2.

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

thismarkjohnson — Tue, 03 Feb 2026 07:18:10 GMT

Windows 11 25H2 isn’t officially supported yet by oneAPI 2025.3, so the installer fails even if prerequisites pass. The workaround is to use Windows 11 23H2/24H2 or wait for a newer oneAPI release that adds 25H2 support.

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

Steve_Lionel — Tue, 03 Feb 2026 17:11:19 GMT

@thismarkjohnson wrote:
Windows 11 25H2 isn’t officially supported yet by oneAPI 2025.3, so the installer fails even if prerequisites pass.

Whether or not Intel claims support for 25H2, it does work and installs properly. The installer isn't THAT picky.

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

JohnNichols — Tue, 03 Feb 2026 19:06:00 GMT

I install these programs on many computers, twice this morning. You will have no problems with any version of Windows 11 up to and including the latest Canary Channel Preview all the way back to a NUC that is on Windows 10 life support.

Remove all the programs using the Control Panel, and then clean out the mess in the c: drive. It takes patience and a little care.

If in doubt us revo unistaller.

Install the latest VS 2022 - do not go above this year it will not work. I select for a variety of reasons the following boxes, Steve will tell you you do not need them all. It is not going to hurt your install.

Once it is installed make sure it is updated and check your favourite theme.

Then in this order, install the latest oneapi base kit completely. And then install the latest HPC kit.

And then try them in the Visual Studio and create a clean Fortran Program. Sometimes you have problems with old programs, create a clean template and then copy your old stuff using the copy command from the old files. Not often but it happens.

NOTE IF THIS DOES NOT WORK THEN YOU ARE GOING TO GO BACK AND BE SENSIBLE AND REINSTALL WINDOWS OR SPEND A FEW HUNRED DOLLARS AT BEST BUY ON A NEW LAPTOP. If your time is worth more than 100 per hour buy a new dell. Your old computer is probably old and tired. Of course if it is brand new update the bios etc...

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

Ady46 — Tue, 03 Feb 2026 20:54:23 GMT

John,

I have a recent mini Dell computer with an intel i7 gen. 7 processor. I recovered all the software from a Dell Precision workstation that broke, with Macrium Reflect. I don't have any problem with all other software, including Cad and FE. As the hardware of the 2 computers is different, may be this is the problem. By the way I used an uninstall program, Hbit that erased all the traces of Oneapi. I don't want to reinstall the windows and all the programs. My solution, for the meantime is Oneapi installed in a virtual machine, in Windows and for more serious work I have the Oneapi Fortran compiler installed in Linux.

Thank you for your suggestion.

Re: I cannot install Oneapi Forran compiler on windows 11 25H2

Ady46 — Tue, 03 Feb 2026 20:55:19 GMT

intel 7 gen 14!