The bigger the capacity of computer C disk, the better?

Generally speaking, installing the operating system is the only purpose of drive C, and this requirement only needs about 5G.

However, due to virtual memory, temporary directory, IE cache, etc. 6 or 7G is often needed.

If the operating system is XP, it is recommended to set drive C to 15G. The reason is that most computer users don't pay attention to the daily maintenance of the system, so the junk information in disk C will increase day by day. Coupled with the system restore function of XP operating system, drive C should be neither wasteful nor nervous, and need no daily maintenance, which is almost 15G.

Because we will continue to install operating system patches in the future.