Final answer:
In Windows, using the Recovery Restart now button under Update and recovery places the PC into Recovery Mode, allowing access to tools for troubleshooting and fixing issues.
Step-by-step explanation:
When using the Update and recovery feature in Windows, accessed through the Charms bar, clicking on the Recovery Restart now button will place the PC into Recovery Mode. This mode is designed to help fix problems that might be preventing Windows from running correctly. The recovery environment provides various tools, such as System Restore, System Image Recovery, Startup Repair, and the Command Prompt, which can be used to troubleshoot and resolve issues.