Is the name for the root directory in Windows OS.
It is where the operating system is installed and is often denoted C:/ “the C drive”.
Structure
Perflogs
Holds Windows performance logs.
Empty by default.
Program Files
32-bit systems: all 16-bit and 32-bit programs. 64-bit systems: only 64-bit programs.
Program Files (x86)
32-bit & 16-bit programs on 64-bit Windows.
ProgramData
Hidden folder with data essential for installed programs
Accessible to all users.
Users
Stores user profiles and the sub-folders Public and Default.
Default
Template for new user profiles.
Copied when a new user is created.
Public
Shared folder accessible to all users. Network-shared by default (requires valid account).
AppData
Per-user app data:
- Roaming: machine-independent data (e.g., custom dictionaries).
- Local: computer-specific, not synced.
- LocalLow: lower integrity level (e.g., safe-mode browsers).
Windows
Core OS files.
System, System32, SysWOW64
DLLs for Windows core features and API; searched automatically when a program loads a DLL.
WinSxS
Windows Component Store – copies of all components, updates, and service packs.