Windows 7 Mouse Acceleration Confusion

Hello Sandsukka,

Welcome to Microsoft Answers Forum!

As you have referred the post which has the similar issue that you can only reduce the acceleration settings from ease of access. However you cannot disable or remove the acceleration.

This might occur due to the corrupt drivers, I would suggest you to update the latest mouse drivers from the device manager and check whether it helps. To do so, please follow the steps mentioned below:

You must be logged on as an administrator to perform these steps.

1.    Open Device Manager by clicking the Start button, clicking Control Panel, clicking System and Security, and then, under System, clicking Device Manager.  If you're prompted for an administrator password or confirmation, type the password or provide confirmation.‌

2.    In the list of hardware categories, find the device that you want to update, and then double-click the device name.

3.    Click the Driver tab, click Update Driver, and then follow the instructions.  If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

For more information, please refer the link mentioned below:

http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly

In addition, try to run an online virus scan and check if it helps.

Please refer the link below to run online virus scan:

http://onecare.live.com/site/en-us/default.htm

I hope this information helps. Please get back to us if you have any more questions about this issue.

Thanks and Regards
Mir - Microsoft Support                                                            
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