In the Windows environment, the bcdedit command is a powerful tool used to manage the boot configuration data (BCD) store. The BCD store contains boot configuration parameters and controls the boot process for Windows. The bcdedit /copy command allows you to create a new entry in the BCD store based on an existing entry, making it a handy tool for creating backups or testing different boot configurations.

Examples:
1. To create a new entry in the BCD store based on an existing entry, open the Command Prompt as an administrator and run the following command:

   bcdedit /copy {current} /d "New Entry"

This will create a new entry with the description "New Entry" in the BCD store.

2. To create a backup of the current boot configuration, you can use the bcdedit /copy command with the {current} identifier:

   bcdedit /copy {current} /d "Backup"

This will create a new entry with the description "Backup" in the BCD store, which can be used to restore the boot configuration if needed.

3. If you want to test a different boot configuration, you can use the bcdedit /copy command to create a new entry based on an existing one and then modify the settings of the new entry. For example, to create a new entry with a different timeout value, run the following commands:

   bcdedit /copy {current} /d "Test Entry"

   bcdedit /timeout 10

This will create a new entry with the description "Test Entry" and set the timeout value to 10 seconds.