Optimize, the professional version is about 5G- 10G. The flagship version may be a little bigger.
Occupy a large space, mainly in the following aspects:
1. Hibernation function can be disabled to save 1-2g space (enter CMD to open the command window at runtime, and then enter powercfg -h off to enter).
2. If your memory is larger than 2G, you can basically disable virtual memory, which will probably save 1-2G space.
3. The software should not be installed on the system disk.
4. The download path should not be set on the system disk.