Hi MovelessMove,
Welcome to Microsoft Community.
In your description, you have set the zoom ratio to 500% in the settings, and you would like to undo its modification through a cmd command, as well as asking for commands if you want to turn off some boot startup items, and commands to reset Windows settings.
I noticed that you were very patient in providing us with your specific needs, and I do understand how you feel about wanting to know what these aspects of the commands do for you.
Windows itself does not provide an easy command line tool to modify resolution directly.
If you wish to adjust the resolution via commands, then you will need to use some third-party tool or software. For some reasons of the community, we can't provide you with the name of such software, you can search for it on the Internet.
If you don't use a third-party tool, you can only adjust the resolution of your system by right-clicking on the Start button, selecting Settings, and then System, Display here.
For the scaling, we can adjust the registry through commands to realize the effect of adjusting the scaling.
1 Search for "Windows PowerShell" in the taskbar, right-click, and select Run as Administrator
2 I will explain how to use the command below, the command is as follows
Set-ItemProperty -Path "HKCU:\Control Panel\ Desktop" -Name "LogPixels" -Value 96
where 96 means use 100% zoom, you can change this value if you wish to try other zoom ratios, 120 for 125% zoom and 144 for 150% zoom.
3 Restart your computer to make the registry changes take effect.
Disclaimer: Generally, modifying registry subkeys or work group is intended for advanced users, administrators, and IT Professionals. It can help fix some problems, however, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For further protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click How to back up and restore the registry in Windows - Microsoft Support to view the article.
For the autostart application you mentioned, you can Check with the following PowerShell command
Get-ItemProperty HKCU:\Software\Microsoft\Windows\CurrentVersion\Run
This will list the applications that are currently launched automatically when you turn on your computer.
You can remove an application from the list by using the following command, where AppName is used as the name of the application.
Remove-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Run" -Name "AppName"
There is no direct command for Windows for the command you mentioned to restore settings. However, we can try to open the System Restore wizard or the Reset PC wizard by using the command.
1 Search for “Command Prompt” in the taskbar, right-click it, and select Run as administrator
2 Here is the command to open System Restore
rstrui.exe
3 You can restore the system settings to the way they were before you changed them by changing the previous restore point on your computer
4 Here is the command to open Reset Computer
systemreset
5 You can reset your computer to the default settings by using the command to reset your computer. can reset your computer to its defaults and during the reset process you can choose to keep your personal data and files.
It's my honor to provide you with some suggestions, and I hope my efforts can bring you some convenience.
Thank you for your understanding and support.
Best regards,
Zev - MSFT | Microsoft Community Support Specialist