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Last modified by Drunk Monkey on 2022-12-08 12:01
From version 12.1
edited by Drunk Monkey
on 2021-11-03 09:36
Change comment: Uploaded new attachment "Screenshot 2021-11-03 at 17.32.39.png", version {1}
To version 3.1
edited by Drunk Monkey
on 2021-08-04 06:22
Change comment: There is no comment for this version

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1 -{{box cssClass="box floatinginfobox" title="**Quick Links**"}}
2 -{{toc start="2" depth="5" numbered="true"/}}
3 -{{/box}}
4 -
5 -== Downgrade Big Sur (11.x) to Catalina (10.15) via an 11.x Host Computer ==
6 -
7 -{{warning}}
8 -These instructions will completely erase the files on computer you are installing to with no chance of recovery. Make sure you have backed up and saved everything you need before you start this process.
9 -
10 -We will also use and erase the USB drive we will use to create the install media. Again, make sure it doesn't contain anything valuable before you start.
11 -{{/warning}}
12 -
13 -1. Start with a 16GB USB drive. This USB will be erased. In our example, the USB is labelled "MyVolume"
14 -1. Download the Catalina installer for 10.15 ( [[https:~~/~~/support.apple.com/en-in/HT201372>>https://support.apple.com/en-in/HT201372]] ) from the apple app store (8GB). After downloading, the OS will try to run the installer and fail giving an error message. Just dismiss the dialog window and continue on.
15 -1. Run "createinstallmedia" via the terminal window to create the installer:
16 -11. ##sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia ~-~-volume /Volumes/MyVolume##
17 -[[image:macos-big-sur-terminal-create-bootable-installer.jpg]]
18 -11. Eject the installer USB
19 -11. Insert the installer USB into the computer and power it on while holding the Option key pressed until the boot selection screen appears:
20 -<screenshot>
21 -11.
22 -
23 -====== ~[[[top>>doc:WebHome]]] ======
24 -
25 25  == Disable MacBook Pro Dedicated GPU ==
26 26  
27 27  
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43 43  1. Run the program, follow the prompts, and enter your password when prompted.
44 44  1. Once the tool finishes running, your system should now run without the dedicated graphics, and should work completely normally.
45 45  
46 -====== ~[[[top>>doc:WebHome]]] ======
47 -
48 48  == Essential Keyboard Shortcuts for Mac ==
49 49  
50 50  (% class="min" %)
51 51  |=Shortcut|=Action
52 52  |**Startup Shortcuts**|
53 -|C|Boot from Optical Drive
54 54  |D|Boot to Apple Diagnostics
55 55  |N|Boot from a network server
56 56  |T|Boot in Target Disk Mode
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61 61  |Cmd + V|Boot in Verbose Mode
62 62  |Option|Boot to Startup Manager, to pick other startup disks if available
63 63  |Cmd + Option + P + R|Reset NVRAM or PRAM
64 -|Shift + Control + Option|Reset SMC
65 -|F12 or trackpad button|Eject removable media
66 -|Left Shift|Disable automatic login (if enabled)
67 -|Shift|(at login screen) Prevent Login items / Previous Windows
37 +|F12|Eject removable media
68 68  |**Global Shortcuts**|
69 69  |Shift + Cmd + 3|Take screenshot of entire screen
70 70  |Shift + Cmd + 4|Take screenshot of selected area
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121 121  |Cmd + Down|Move down one folder
122 122  |Cmd + Option + I|Show Attributes Inspector
123 123  |Cmd + Control + N|With files selected, create a new folder and immediately move selected files into that folder
124 -
125 -====== ~[[[top>>doc:WebHome]]] ======
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