Have an old laptop with a GeForce 310M that is compatible with Windows 10?

The GeForce 310M is made for Windows 7 on the Internet, so I'm just asking here because I'm not sure whether it will work with Windows 10 because the graphics card is already older xD

Yes, it is still compatible

There's an NVIDIA Win10 driver for this card.

If you do a Win10 upgrade (free of charge), it will usually be installed automatically. (This graphics card should be activated)
Your files, settings and installed programs are retained.
How to do it, see:

Charge the battery fully beforehand and also connect the power supply for safety reasons.

Make sure that the laptop is connected to the Internet via LAN during this action.

With a normal course, expect about 2 1/2 hours.