Hi,
I'm Rodrigo and I'll help you.
To create a shortcut for This PC on the Desktop, just drag the This PC icon from the File Explorer to the Desktop.
To create a shortcut for "Run" right-click in a blank are of the desktop > New > Shortcut, paste the path below > Next > Name the shortcut > Finish.
The shortcut will show the File Explorer icon, if you want to set the "Run" icon, right click the shortcut > Properties > Change icon > paste the path and press enter to show the icons.
C:\Windows\System32\imageres.dll
For the File Explorer, do the same process above to create a shortcut and use the path:
explorer.exe
For the Task Manager, do the same process above to create a shortcut and use the path:
taskmgr.exe
For the Control Panel, do the same process above to create a shortcut and use the path:
Control.exe