Files
OpenCore-Legacy-Patcher/docs/WINDOWS.md
2021-04-30 22:51:12 -06:00

82 lines
3.5 KiB
Markdown

# Installing UEFI Windows 10
* Guide based off of [cdf's Mac Pro Thread](https://forums.macrumors.com/threads/opencore-on-the-mac-pro.2207814/)
To install UEFI is actually super simple! All it requires is to boot Windows' Installer through OpenCore to force a UEFI setup. Here we'll be going a bit more step by step in the process including partitioning and such.
* Note: UEFI Windows is generally quite usable for Arrendale and newer models, however machines with Penryn CPUs may experience issues
* Recommended Models:
* MacBookAir4,x and newer
* MacBookPro8,x and newer
* Macmini5,x and newer
* iMac11,x and newer
* MacPro4,1 and newer
* Xserve3,1 and newer
Once you know your model is supported, you're good to go with the rest of this guide
## Disk Formatting
To start off, we'll need the following:
* An 8GB USB drive for the Windows Installer
* Minimum of 30GB of free space on whatever drive you want to install Windows too
First, lets format out drives as follows:
### USB Drive Formatting
Open Disk Utility in macOS and format the USB Drive as ExFat with MBR Scheme:
![](../images/windows-mbr-format.png)
### Disk Formatting
Next, grab the drive you wish to install Windows on and partition it as ExFat (If formatting entire drive, ensure it's GUID Partition Table):
![](../images/windows-partition-1.png)
If you plan to use the same hard drive for macOS and Windows, we recommend creating a dedicated partition just for OpenCore. This lets Windows have the ESP to itself and OpenCore can stay within it's own bubble.
Recommended size is 200MB and the partition format **must** be FAT32 for OpenCore to operate correctly. You will next want to install OpenCore onto the new partition, either moving from the ESP with [MountEFI](https://github.com/corpnewt/MountEFI) or rerunning the OpenCore-Patcher.app
* Note: For machines with dedicated drives for Windows, having different partitions for OpenCore is not required
* Note 2: We recommend uninstalling OpenCore from the ESP/EFI Partition when you create this new OpenCore partition to avoid confusion when selecting OpenCore builds in the Mac's boot picker
![](../images/windows-partition-2.png)
## Creating the Installer
First up, lets grab Windows's Installer at the below link:
* [Download Windows 10 Disc Image (ISO File)](https://www.microsoft.com/en-ca/software-download/windows10ISO)
Next, mount the Windows 10 ISO:
![](../images/windows-iso.png)
The open terminal and run `rsync` on the USB drive (replace CCCOMA_X64 with the mounted ISO's name, as well as replacing W10USB with your USB drive's name):
```
rsync -r -P /Volumes/CCCOMA_X64/ /Volumes/W10USB
```
![](../images/rsync-progess.png)
Command will take some time, so sit back and get some coffee. Once finished, the root of the USB drive should look as follows:
* Ensure that these folders and files are on the root, otherwise the USB will not boot
![](../images/windows-rsync-done.png)
Once done, lets reboot into OpenCore's Menu and you'll see a new Windows' entry:
* Note: Do not boot the installer outside of OpenCore as this will default back to the old MBR BIOS setup. Booting through OpenCore ensures Windows uses UEFI
![](../images/oc-windows.png)
From there, install Windows as normal and you'll get a new BootCamp entry in OpenCore's picker when done!
* Don't forget to run BootCamp's utilities installer as well to ensure Wifi and such are functioning correctly. This can be downloaded from the BootCamp Assistant app in macOS
![](../images/oc-windows-done.png)