Hello,
I see you give no specific info regarding your MacBook. We need the model year at minimum. Once you know this, we can determine what steps you need to take. In the absence of specifics, I can only give you the most generic walkthrough that I can give.
Officially, you need:
- An Intel Mac from 2012-2020
- At least 8 GB RAM
- At least 64 GB of unused space on your hard disk/SSD
- The latest macOS available for your unit
- 2012-2014: Catalina
- 2015: Monterey
- 2016-2018: Ventura
- 2019+: Sequoia
- A 64-bit Windows 10 disk image -get this from Microsoft
- The latest (and last) image is of version 22H2, but you can use any image dated newer than your unit.
- A valid Windows 10 retail product key. Older Windows keys were disabled for use as of September 2023.
- Optional: USB "A" or "C" flash sticks of 16 GB or better. If you have a MacBook with Touch Bar or later, you probably need a "C" stick.
Perform a Clean Installation of Windows:
- In macOS, launch the Boot Camp Assistant. If you already have a Boot Camp volume, you may need to kill it. Follow the onscreen prompts.
- Restart your machine.
- Perform all available software updates from System Preferences/System Settings.
- If necessary, flush the PRAM (Command-Option-P-R during startup; perform 3-4 loops) and the SMC (procedures vary).
- Run Boot Camp Assistant again. Follow the onscreen prompts. You might be asked for the location of the image you downloaded.
- Let Boot Camp do its thing. You will only be required to enter your Product Key during the setup portion.
- Finish the out-of-box setup. The Boot Camp Software and Driver Setup will launch automagically following this. Follow the prompts. If your screen goes dark with security prompts, answer Yes to each prompt
- Restart in Windows.
- Run Apple Software Update from the Start Menu. Apply all updates and restart if prompted. Repeat until ASU says you're current.
- Launch Settings from the Start Menu
- Find "Update and security"
- Apply all of the updates listed onscreen. Restart when prompted.Again, repeat until you are caught up.
- Optional: Launch the Microsoft Store. It might relaunch itself once. When it does, click the Library on the left, then "Get updates" at the top. This should patch the apps built into Windows.
- To finish, use the Boot Camp Control Panel (gray diamond) to restart in macOS.
- To restart in Windows at your leisure, hold Option when you start up, then click "Windows". To make it persistent, hold Control as you click.
If for some reason this doesn't work or your screen is still wibbly-wobbly-timey-wimey, see Apple about a repair.
Good luck,
Nate