Why doesn't Huawei Hongmeng consider making a homegrown desktop operating system?Can Windows be replaced?

This is mainly because Huawei simply doesn't have the need to make a desktop system that is a full replacement for windows, and it's not cost effective to do so.

For a company like Huawei, Huawei does have strong enough R&D to make a stand-alone desktop operating system, as well as to make more competitive tech products. In a way, because the operating system itself will involve a system, the focus of the operating system is not on how to make the system, but on how to make the system of the system. Except for Microsoft windows, there is no product that can fully replace all the roles of windows, and a lot of software developers will choose to carry out all kinds of development operations through the desktop of windows.

Huawei doesn't even need to consider making a domestic desktop operating system.

For Huawei, Huawei can make a backup domestic desktop operating system by developing the Hongmeng system, but this system will not be used for everyone at all. In the case of non-essential, we also do not have to Hongmeng system to fully replace the windows system, after all, the mainstream software on the market is still the windows system under the tool, a full replacement of the windows system is a very cumbersome project, including Huawei, including any company will not want to do so.

Microsoft windows will not be fully replaced.

The main reason why I say this is because Microsoft windows has accumulated at least 4 billion users worldwide, and many of them also have the habit of using the windows system for a long time. In this case, no matter how powerful a new operating system is, because of the inertia of the users themselves, most of them are not willing to fully replace their desktop systems.

Though, while Huawei has the strength to go for a standalone desktop OS, it's not cost-effective to do so, and Huawei doesn't need to go to the trouble of replacing Microsoft - after all, the two companies aren't competing in a direct sense.