No it does not
No. Certain files are hidden by default. You can reveal them by opening any folder, clicking on tools, folder options. View Options, view hidden files and folders.
C:\Windows\
By default the tile view files are displayed in the Windows Explorer
Go away, nerd.
c:\windows\system32
Data files for what? The system? Undoubtedly that'd be the system32 folder, but your best bet, look in the C:\WINDOWS\ folder for all of them.
Only the files and programs that users specify are available offline
The default size of the ntds log files is dependent on the server version. In Windows 2000, the default size is 10 MB, while in Windows 2003 the default size is 12 MB.
boot partition
Boot Partition
A system image is an exact copy of a drive. By default, a system image includes the drives required for Windows to run. It also includes Windows and your system settings, programs, and files.
You need to change your Windows Defaults. This option is found in the Control Panel. You can choose which program to open files with by default. It sounds to me like all your files have a Windows Media Player Default setting on.