The Tools - Internet Options - General tab has a home page setting option Enter the URL of your default page there, Some rogue software can change your homepage. It's better to go to the optimization master, Find the ie settings, where you can also set the home page.
1 You can install Firefox China version. There will be font size and font style settings at the bottom right of Firefox China version (of course, your plug-ins and bookmarks will not be lost)
2. If you don't want to change to the Chinese version, turn the Ctrl key in dark, and then slide the mouse wheel to the desired position
The last recommendation: 3. Click View in the upper right menu bar to find the zoom and press Reset