I have Updated Boinc to V 7.24.1, I then lost the use of 2 GPU's....
The one on the mother board.... Intel and My NVIDIA Card....
I uninstalled it then reinstalled it and NOT as a Service...
They worked until I updated... The log says:
10/26/2023 7:01:17 PM | | cc_config.xml not found - using defaults
10/26/2023 7:01:17 PM | | Starting BOINC client version 7.24.1 for windows_x86_64
10/26/2023 7:01:17 PM | | log flags: file_xfer, sched_ops, task
10/26/2023 7:01:17 PM | | Libraries: libcurl/8.2.1-DEV Schannel zlib/1.2.13
10/26/2023 7:01:17 PM | | Data directory: C:\ProgramData\BOINC
10/26/2023 7:01:17 PM | | Running under account Lu
10/26/2023 7:01:17 PM | | No usable GPUs found
10/26/2023 7:01:17 PM | | app version refers to missing GPU type intel_gpu
10/26/2023 7:01:17 PM | Einstein@Home | Application uses missing intel_gpu GPU
10/26/2023 7:01:17 PM | | app version refers to missing GPU type NVIDIA
10/26/2023 7:01:17 PM | Einstein@Home | Application uses missing NVIDIA GPU
10/26/2023 7:01:17 PM | | app version refers to missing GPU type NVIDIA
10/26/2023 7:01:17 PM | Einstein@Home | Application uses missing NVIDIA GPU
10/26/2023 7:01:17 PM | | app version refers to missing GPU type NVIDIA
10/26/2023 7:01:17 PM | Einstein@Home | Application uses missing NVIDIA GPU
10/26/2023 7:01:17 PM | | app version refers to missing GPU type NVIDIA
10/26/2023 7:01:17 PM | Milkyway@Home | Application uses missing NVIDIA GPU
10/26/2023 7:01:17 PM | | app version refers to missing GPU type NVIDIA
10/26/2023 7:01:17 PM | World Community Grid | Application uses missing NVIDIA GPU
10/26/2023 7:01:17 PM | | app version refers to missing GPU type intel_gpu
10/26/2023 7:01:17 PM | World Community Grid | Application uses missing intel_gpu GPU
10/26/2023 7:01:17 PM | | Windows processor group 0: 8 processors
10/26/2023 7:01:17 PM | | Host name: livingroom
10/26/2023 7:01:17 PM | | Processor: 8 GenuineIntel Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz [Family 6 Model 60 Stepping 3]
10/26/2023 7:01:17 PM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 fma cx16 sse4_1 sse4_2 movebe popcnt aes f16c rdrandsyscall nx lm avx avx2 vmx tm2 pbe fsgsbase bmi1 smep bmi2
10/26/2023 7:01:17 PM | | OS: Microsoft Windows 10: Professional x64 Edition, (10.00.19045.00)
10/26/2023 7:01:17 PM | | Memory: 30.91 GB physical, 61.91 GB virtual
10/26/2023 7:01:17 PM | | Disk: 1.82 TB total, 34.80 GB free
10/26/2023 7:01:17 PM | | Local time is UTC -6 hours
10/26/2023 7:01:17 PM | | No WSL found.
10/26/2023 7:01:17 PM | | VirtualBox version: 6.0.4
10/26/2023 7:01:17 PM | World Community Grid | General prefs: from World Community Grid (last modified 20-Feb-2022 13:38:21)
10/26/2023 7:01:17 PM | World Community Grid | Computer location: home
10/26/2023 7:01:17 PM | | General prefs: using separate prefs for home
10/26/2023 7:01:17 PM | | Reading preferences override file
10/26/2023 7:01:17 PM | | Preferences:
10/26/2023 7:01:17 PM | | - When computer is in use
10/26/2023 7:01:17 PM | | - 'In use' means mouse/keyboard input in last 3.00 minutes
10/26/2023 7:01:17 PM | | - max CPUs used: 8
10/26/2023 7:01:17 PM | | - Use at most 100% of the CPU time
10/26/2023 7:01:17 PM | | - max memory usage: 15.45 GB
10/26/2023 7:01:17 PM | | - When computer is not in use
10/26/2023 7:01:17 PM | | - max CPUs used: 8
10/26/2023 7:01:17 PM | | - Use at most 100% of the CPU time
10/26/2023 7:01:17 PM | | - max memory usage: 27.82 GB
10/26/2023 7:01:17 PM | | - Leave apps in memory if not running
10/26/2023 7:01:17 PM | | - Store at least 10.00 days of work
10/26/2023 7:01:17 PM | | - Store up to an additional 0.00 days of work
10/26/2023 7:01:17 PM | | - max disk usage: 34.94 GB
10/26/2023 7:01:17 PM | | - (to change preferences, visit a project web site or select Preferences in the Manager)
10/26/2023 7:01:17 PM | | Setting up project and slot directories
10/26/2023 7:01:17 PM | | Checking active tasks
10/26/2023 7:01:17 PM | Einstein@Home | URL https://einstein.phys.uwm.edu/; Computer ID 12931441; resource share 100
10/26/2023 7:01:17 PM | Milkyway@Home | URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 919668; resource share 100
10/26/2023 7:01:17 PM | RamanujanMachine | URL https://rnma.xyz/boinc/; Computer ID 9642; resource share 100
10/26/2023 7:01:17 PM | World Community Grid | URL http://www.worldcommunitygrid.org/; Computer ID 8552122; resource share 100
10/26/2023 7:01:17 PM | | Setting up GUI RPC socket
10/26/2023 7:01:17 PM | | Checking presence of 1202 project files
10/26/2023 7:01:17 PM | | Suspending computation - user request
10/26/2023 7:01:17 PM | | Suspending network activity - user request

I Don't know what to do, Can someone Help?
Thanks....

All those projects use OpenCL apps. So you don't have any OpenCL component loaded with your drivers.

Plus there are no gpu apps or work for Milkyway project.

So start with reinstalling your drivers to include support for OpenCL.

Everything worked fine before update of bonic. The new version cant see the gpus.... even the activity dropdown has no gpu on/off feature/selection....
maybe in the ini file I need to add my CPUs to enable them?

Everything worked fine before update of bonic

Try re-installing version 7.24.1

---

I have Installed Drivers for Intel Motherboard video... No Go...
Then I Installed Nvidia Video works Now....Works...Menu Bar Has GPU Options to chose from.....

10/30/2023 4:36:50 PM | | Starting BOINC client version 7.24.1 for windows_x86_64
10/30/2023 4:36:50 PM | | log flags: file_xfer, sched_ops, task
10/30/2023 4:36:50 PM | | Libraries: libcurl/8.2.1-DEV Schannel zlib/1.2.13
10/30/2023 4:36:50 PM | | Data directory: C:\ProgramData\BOINC
10/30/2023 4:36:52 PM | | CUDA: NVIDIA GPU 0: NVIDIA GeForce GT 1030 (driver version 545.92, CUDA version 12.3, compute capability 6.1, 2048MB, 2048MB available, 1127 GFLOPS peak)
10/30/2023 4:36:52 PM | | OpenCL: NVIDIA GPU 0: NVIDIA GeForce GT 1030 (driver version 545.92, device version OpenCL 3.0 CUDA, 2048MB, 2048MB available, 1127 GFLOPS peak)
10/30/2023 4:36:52 PM | | OpenCL: Intel GPU 0: Intel(R) HD Graphics 4600 (driver version 20.19.15.4624, device version OpenCL 1.2, 1630MB, 1630MB available, 200 GFLOPS peak)
10/30/2023 4:36:52 PM | | OpenCL CPU: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz (OpenCL driver vendor: Intel(R) Corporation, driver version 5.2.0.10094, device version OpenCL 1.2 (Build 10094))
10/30/2023 4:36:52 PM | | Windows processor group 0: 8 processors
10/30/2023 4:36:52 PM | | Processor: 8 GenuineIntel Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz [Family 6 Model 60 Stepping 3]
10/30/2023 4:36:52 PM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 fma cx16 sse4_1 sse4_2 movebe popcnt aes f16c rdrandsyscall nx lm avx avx2 vmx tm2 pbe fsgsbase bmi1 smep bmi2
10/30/2023 4:36:52 PM | | OS: Microsoft Windows 10: Professional x64 Edition, (10.00.19045.00)
10/30/2023 4:36:52 PM | | Memory: 30.91 GB physical, 61.91 GB virtual
10/30/2023 4:36:52 PM | | Disk: 1.82 TB total, 29.65 GB free

I should have said...
Update drivers for both video cards... They were installed all ready....

I should have said...
Update drivers for both video cards... They were installed all ready....

Windows update more than likely recently overwrote / updated the Nvidia divers to the "Windows version" which doesn't include everything needed for GPU crunching. Then when you ran the Nvidia update it started to work again.