Installing software will take up a certain amount of hard disk space, which may result in less available space.
Software will take up some computing resources (such as CPU and memory).
After installing the software, some software needs to be run with administrator privileges.
In order to give users a better experience, the software will automatically update and pop up preferential notifications from time to time, and run the update program in the background.
New software installed may bring new interfaces and usage methods, which may take some time to adapt. Especially for users who are not familiar with computers, it may be confusing.