Windows 10: Boot camp problem on imac os x 11.7 with windows 10

I have Windows 10 and el capitan on my imac. el capitan works great but win 10 time doesn't stay correct and volume doesn't work. The problem doesn't seem to be fixable in Settings or with updates.

:)

 

Installing Windows 10 on iMac using Boot Camp

Step 1: download the ISO file directly to your Mac from the Software Download page. See instructions:

https://windows10.help/blogs/entry/24-how-to-do...

Step 2: Make sure your Mac is running macOS 10.12.5 or later.

Step 3: Launch Boot Camp then select the ISO file, resize your partition, click Continue. macOS will download necessary Windows Support software. When complete, it will automatically reboot into Windows 10 setup.

Select the Boot Camp partition created earlier in the Custom Advanced window.

Follow the rest of the instructions as described in the following article:

https://www.groovypost.com/howto/install-window...

 

How to reinstall free Windows 10 Pro on iMac boot camp

Follow the instructions to setup your boot camp partition and install Windows 10:

https://www.groovypost.com/howto/install-windows-10-mac-os-x-boot-camp/

Then use your Windows 7 Professional key to reactivate by chat support:

Activate Your Windows 10 License via Microsoft Chat Support

 

Bluetooth is not working with Boot Camp after upgrading to Windows 10

Hi,

To enable your Bluetooth, run the Boot Camp Assistant from the Utilities folder on your Mac and install the support software, which includes the latest drivers you need for Bluetooth.

• 
  Check for software updates to make sure OS X, your Mac firmware, and Boot Camp Assistant are
  up to date.
  
• 
  Run Boot Camp Assistant and install the support software, which includes the latest Boot Camp drivers you need for Bluetooth.
  You can find step-by-step directions at Apple’s Support Site here.
  

After reinstalling the drivers, all paired devices from Windows 8.1 should still be paired and usable.