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Is there a way to make a mouse scroll wheel invert its direction? I'd like to scroll upwards and have that action scroll downwards and vice-versa. There is no setting on the Mouse control panel that makes this possible.

Any pointers to a hack or a particular mouse model that has such a setting would be appreciated. I am using Windows 7.

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FTR for 2015. With Windows 8. The process is precisely the following, based on Richard's answer, Pete's critical point, and some investigation! It is 100% reliable on Windows 8 machines, nothing more is needed. (1) bring up PowerShell as an administrator. {For those transitioning from a Mac: on Windows 8, mouse to bottom right, bring up the search, enter 'powershell', launch it. Right-click in the icon in the tab bar, change to admin running.} cont... – Joe Blow Dec 24 '14 at 16:52
enter ... Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 1 } – Joe Blow Dec 27 '14 at 8:57
then enter .. Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopHScroll -EA 0 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopHScroll 0 } – Joe Blow Dec 27 '14 at 8:58
it's extremely hard to enter those in comments :) – Joe Blow Dec 27 '14 at 8:59
up vote 280 down vote accepted

There is a registry setting named FlipFlopWheel that does this!

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\HID\VID_???\VID_???\Device Parameters.

There might be multiple mouse entries. The default value for FlipFlopWheel should already be 0. Change it to 1 to invert scrolling. Reboot or replug mouse for changes to take effect.

To get the VID_??? number you have two options:

  1. Go to the mouse control panel, click the Hardware tab, then click Properties.

    Now in the HID-compliant mouse Properties window click the Details tab and select the Device Instance Path property. The registry path is in there. You only have to unplug and plug back in your mouse for this to take effect.

  2. Run this in PowerShell (from Start » All Programs » Accessories » Windows PowerShell):

    # View registry settings
    Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0
    # Change registry settings
    # Reverse mouse wheel scroll FlipFlopWheel = 1 
    # Normal mouse wheel scroll FlipFlopWheel = 0 
    Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 1 }

    The command for normal (non-inverted) scrolling has the 0 and 1 swapped:

    # Restore default scroll direction
    Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 1 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 0 }
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In Windows 8 there is also a setting for "FlipFlopHScroll" that flips the horizontal scrolling (especially useful for Win8). – Pete Amundson Aug 2 '12 at 14:25
Don't worry about what the ??? should be, just run this in PowerShell: Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Enum\HID\*\*\Device` Parameters FlipFlopWheel -EA 0 | ForEach-Object { Set-ItemProperty $_.PSPath FlipFlopWheel 1 } – Jaykul Sep 16 '12 at 3:28
How to find the correct registry key? The key must match the hardware id of your mouse. To find that: Control Panel > Device Manager > Mice... > HID-compliant mouse > right click > properties > Details > Property (dropdown) = Hardware Ids > you will see the id on 1st line, this should match one of the entries in registry above. – Marwan Jun 16 '13 at 6:13
Note that the PowerShell command has to be run as administrator. It's all you have to do though, it just goes in and sets the property for every single VID_???. – Nelson Oct 25 '14 at 15:38
Just wanted to note that this PowerShell command does indeed work in Windows 10 as well. – Bobby Aug 1 '15 at 17:30

First install AutoHotKey. Now create a script that looks like this :

Send {WheelDown}

Send {WheelUp}

Save it as a .ahk file and double-click the file to run it. Now you should have inverted the mouse wheel scrolling.

All information from here, though it has been modified with the addition of the $ prefix to prevent the Send commands from being captured again by the script (which exacerbates the MaxHotkeysPerInterval issue)

Add the following to the script to invert horizontal wheel scrolling:

Send {WheelRight}

Send {WheelLeft}

Scrolling with the wheel might exceed the default limit of hotkey presses in a specified time interval. By default, this is 70 hotkey presses (#MaxHotkeysPerInterval) per 2000 milliseconds (#HotkeyInterval). Add this directive to your script to increase the limit from 70 to 200 hotkey presses per interval:

#MaxHotkeysPerInterval 200
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I'll try this out at work and if it works I'll tag your answer as the right answer. Thanks! – Christian Correa Jul 14 '11 at 23:10
Works great. It's not perfect, every now and then it won't catch the "key" event, but as long as you keep scrolling, the very next event will be caught. The net effect is what I was looking for. So that would have to do for now, until manufacturers make this option configurable in Windows. Thanks! – Christian Correa Jul 15 '11 at 19:07
There is an option in registry as suggested by Richard. – tig Feb 1 '12 at 15:44
This one works best if your access policy prohibits editing the registry. Great idea! – mattmc3 Jan 22 '14 at 20:08
+1 For my Windows 7 installation this was the answer that allowed me to invert horizontal scrolling. – Chris Schiffhauer Feb 17 '14 at 17:12

You can also use the application X-Mouse Button Control to accomplish this. You only need to set the "Wheel Up" button to the "Scroll Window Down" command, and vice-versa. I am using this on Windows XP, but the app should work on 7 or Vista, also. It was very quick to set up, and since it's a GUI application, it was easier to use.

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I installed X-Mouse Button Control on my Windows 7 and scrolling is now reversed. Works perfect. Same direction as my home Mac with OS X Lion. – Magnus Aug 2 '11 at 7:11
v2.2 has an "invert mouse wheel scrolling" on the "Scrolling & Navigation" tab. – Lars Truijens Nov 14 '11 at 20:26

I've written a small c# app to change the registry settings for all devices. It enumerates every device and changes the 'FlipFlopWheel' setting to 1 or 0 depending on which button you press.

the full source is available on github, the source code that actually does the flipping the registry setting (<100 lines) is here:

for those just wanting to 'get it done' here is the executable (asks for UAC elevation)

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People usually like to read a little more about your application before downloading and running a .exe ;) Please extend your answer and write a proper introduction. Please also refrain from simply adding your link to other answers unless you really feel like it improves the answer at hand. – Oliver Salzburg Jul 29 '12 at 18:22
The guy provided the source code for the executable, it's hardly mischievous if you feel inclined to check it, just look at it, it's a tiny script. Thanks for the script @JamiePate, it worked great. It was nice not having to tinker with the registry. – samayres1992 Mar 4 '14 at 1:46
@samayres1992 He added the extra info a day after Oliver's original comment... – Bob Sep 8 '14 at 5:34
Thanks Jamie! I notice it filters on hid.mousedevice initially. Pity Razer mice don't seem to publish as such, fortunately your app allows to show all input devices. Just gets a bit cryptic... – Marius Aug 15 '15 at 15:55
Just raise an issue on github with the device name string, i'll add it to the initial filter list. (I only have a logitech mouse which shows up as "@msmouse.inf,%hid.mousedevice%;HID-compliant mouse" so it'd be interesting to see what other device brands use for that string. – Jamie Pate Aug 15 '15 at 19:56

I have a Microsoft mouse attached to a bootcamped MacBook. It was easy to launch Mouse and Keyboard Center and set [Wheel->Reverse scroll direction]. Irony certainly plays a role here.

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Just for clarity: Mouse and Keyboard Center comes with Microsoft hardware and is unrelated to Macs. – Louis Nov 2 '12 at 6:34
Thank you, Louis! This shall not be overlooked. – Kenneth Laskoski Nov 4 '12 at 3:46
This setting does not seem to be reloaded after reboot in Win8. The setting is shown as on when you go into the dialog. But it needs to be turned off then back on to re-enable. – Metro Jan 15 '13 at 22:34
Yes, I recently upgraded to Windows 8 and noticed that, too. I ended up using @Richard's method. – Kenneth Laskoski Jan 16 '13 at 19:56
Note that @Jaykul's (otherwise convenient) shortcut may not work for everyone. In my case I needed to invert the wheel in native Windows, but sometimes I open the same Windows in VirtualBox, which already takes care of mouse/keyboard input. – Kenneth Laskoski Feb 9 '13 at 6:45

Confirm again X-Mouse Button Control is a clean and perfect solution on Windows 7 :)

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What makes it clean and perfect? Can you please summarize what's in that page so your answer is still useful if it changes or becomes unavailable? Please read the help article on answering. – Moses Oct 11 '13 at 23:33
While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. – Kevin Panko Oct 12 '13 at 0:56

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