Mouse scrolling in Word is laggy/jumpy

Hello! Which Logitech wireless mouse are you using currently? I have two Logitech mice and a wireless keyboard, hopefully I can help you figure out what's up.

First off, make sure the unifying receiver is plugged in properly. Ideally, I'd try not to have any other usbs plugged in to the adjacent slots to eliminate the possibility of interference. Second, make sure you aren't trying to use the mouse from too far away, or with anything solid in between that could weaken the signal. I definitely don't get the 15' range listed for mine.

Next, check your toolbar icons to see if the Logitech Unifying Software software is installed and running. If not, head over to https://support.logi.com/hc/en-us/articles/360025297913 and install it. (Wouldn't hurt to scan the link on VirusTotal and the exe with Defender, but that's your call). It will probably start up on its own and make the connection, potentially installing new firmware for the mouse.

If it still is laggy and/or didn't start and pair with the mouse, try this. Press Win+X and then M to open Device Manager. Up top, click View, then "Show Hidden Devices." Scroll down to 'Mice and other pointing devices' and click on it. There's bound to be two at least, maybe more, mice listed here. Some will be greyed out. Right click on the greyed out ones and Uninstall Device, checking the box to delete the driver if it gives you the option. Check out the properties of whatevers left and try uninstall them all until you're down to the one for your mouse. At this point, save and close anything you have running, and uninstall the last mouse. You'll have to use your keyboard to restart, so pick one of the dozen ways and shut her down. (Alt+F4 repeat, repeat | Ctrl+Alt+Del twice, then Tab over to the power symbol | press Win and use arrows/Tab to reach the power options | etc, etc, etc) While you're rebooting, unplug the usb receiver and turn the mouse off. Wait until it's up and running and plug the receiver back in, start up the Logitech Unifying Software, turn on the mouse, and follow the instructions.

Depending on which mouse you have, you can try installing Logitech's Options app if it's still experiencing issues. You can find it at https://support.logi.com/hc/en-us/articles/360025297893-Logitech-Options. I very much doubt it should have to come to that, though.

Also, I am assuming you have tried all of the basic Windows fixes already. Because I'd try those first. Just in case...

1. 'Win+ I' > Devices > Mouse > check the speed and scroll settings > click 'Additional mouse options' > check the settings in here as well

2. 'Win + I' > System > About > Advanced system settings > choose the Advanced tab > under 'Performace' choose 'Settings' > look at the settings on the Visual Effects tab. I tend to leave mine on the "Let Windows choose what's best" option, but it's up to you - there isn't a huge drop in performance when all of the effects are on. You definitely want to check the Smooth-scroll option, though. Try activating them all, and if you notice it fixes your erratic pointer you can go back and disable settings one at a time.

Hope this helps!