Problems with touchpad and desktop

I just started using a Toshiba laptop with W-10. I hate it. Anyway, the touchpad is way too sensitive. How do I adjust that? I have been all over the personalization etc and can't find anything. It's barely useable because it keeps doing things I don't want it to.

Also, for no reason my webpage will expand from 90% (which I set as default) to up to 300%. Obviously I did something. I think it's related to the touchpad but I don't know what to do. It's driving me nuts.

This laptop has been sitting around for 3 years and I haven't used it because I hate W-10 so much. But my trusty 2007 laptop with W-7 is about to die so I have no choice.

Thanks.

Thank you, I will try this.

See the part number (P/N) or the exact model at the back of your laptop and then visit the manufacturer's support site. You can download the touchpad driver which also includes a utility to configure it. Try lowering the sensitivity of touch. If the utility is not available for Windows 10, select 8 or 7 or Vista. It will work OK.

Thank you so much. I will work on it this afternoon.