Using Partition Magic or similar tools like EaseUS Partition Master or MiniTool Partition Wizard can effectively manage disk partitions on Windows 7. These tools handle resizing, merging, and recovering partitions quite well. Before starting, ensure you back up all indispensable data to avoid any potential loss. Additionally, it’s wise to keep your system plugged into a power source during the operation and close any unnecessary applications to prevent errors. Always double-check the partition sizes and operations before applying changes. This will help you safeguard against unwanted data loss or misoperations.