2.1 C: Drive vs. D: Drive (System vs. Data) | File Management

C: Drive (System Drive): Dedicated to holding the Windows Operating System and the majority of installed software.
Risk Warning: If the system is infected or crashes, requiring a fresh installation, the data on the C: drive is typically formatted (wiped). Therefore, do not store important personal files here.
D: Drive / E: Drive (Data Drive): This is your personal file “Safety Deposit Box.”
Recommendation: Store all personal documents, photos, and videos here. Data on these drives is usually safe and accessible even if the C: drive needs reinstallation.

Windows File Explorer showing C: system drive and D: data drive — In Windows, the C: drive is typically used for the system and programs, while D: (or other drives) are recommended for storing personal data.