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You can learn more about theory and the program here:http://www.overclockers.ru/lab/15925/Razgon_USB_myshi_ili_Software_nanosit_otvetnyj_udar.html(in Russian language(*))

I have personally tested it under Windows 98SE, 2000 SP2/SP4,XP RTM/SP1/SP2/SP3, XP x64 SP2, 2003 x86 SP2, Vista 32 bit RTM/SP2,Vista 64 bit RTM, 7 x86 SP1, 7 x64 SP1, 8 x64, 8.1 x64,10 x64 1803, 1809, 1909, 20H2, 21H1, 21H2, 22H2, 11 22H2.The first testing on x64 platform was performed by Dark_Cloud underWindows XP x64 SP1.

2. Installation.
3. Downclocking (all devices and drivers) or overclocking of Full Speed USBdevices is possible always and there is no need to patch system code.

So, if you use program for this purpose - take driversfrom directories DRIVER\NTX86[_AS]\NOPATCH\ and DRIVER\AMD64[_AS]\NOPATCH\and replace drivers from directories DRIVER\NTX86[_AS]\ and DRIVER\AMD64[_AS]\

Because Windows 2000 doesn't have restrictions for overclocking Low Speed USBdevices in driver code for OHCI and UHCI controllers you can use the driverfrom DRIVER\NTX86\NOPATCH. Windows 98 and ME also don't have suchrestrictions, so there is no patch version of driver for these OSes at all.

If you use your device with pure EHCI controller (without companionUHCI or OHCI controllers and with integrated USB2.0 Hub) or with anyEHCI controller through USB2.0 Hub on Windows 2000 then just useordinary version of driver (with patch).And there is special unofficial version of USBPORT.SYS for Windows 98 and MEwithout any restrictions of polling rate for such cases.

2. For OSes begining from Windows XP for successful overclocking ofLow Speed USB devices is REQUIRED the presence original (not alteredby other programs) version of system driver USBPORT.SYS(%sytemroot%\system32\drivers\usbport.sys).Windows 8 beginning also works with USBXHCI.SYS(%sytemroot%\system32\drivers\usbxhci.sys).And under Windows 7 is supported Intel xHCI driver (IUSB3XHC.SYS)(see additions in HIDUSBFN.ZIP)

3. Install my driver HIDUSBF.SYS. For this purpose execute SETUP.EXE (thereshould also be .INF and .SYS files UNZIPPED). Click [Install Service].

In case of HIDUSBF service wasn't installed throughSETUP.EXE (button [Install Service]) you may try to do this by OSstandard possibility:mouse right button click on HIDUSBF.INF / HIDUSBF_AS.INF -> InstallBy default (in SETUP.EXE) HIDUSBF.INF applies to all OSes up to Windows 8and HIDUSBF_AS.INF starting from Windows 8.1.It is enough to install the service once for each OS instance.

Then choose the row with your device and put a checkmark Filter On Device.Check that in the column Filter? it says Yes. After that choose desired refreshrate. After that push [Restart]. Check if the refresh rate has reallychanged (for example with the program Mouse Rate Checker).

If your rate did not change, then you should either reboot, plug-outand plug-in mouse cable or stop and then start your mouse inDevice Manager.

If the rate does not increase more than 125Hz, then you shouldtry DECREASE it to 31Hz or 62Hz.If the rate does decrease, then the driver functions properly, howeveror you mouse is not overclockable; or USBPORT.SYS/USBXHCI.SYS was alteredor simply too new and so unknown to the program.

3. Uninstall.

4. Unlink driver from mouse through SETUP.EXE (Filter = Unchecked)

5. For removing a service and file of driver:Setup.EXE -> mouse right button click on [Install Service] ->[UnInstall Service]ormouse right button click on HIDUSBFU.INF -> Install in Explorer

6. If you have delete a driver but not unlink it from mousethen the mouse will stop working. To make mouse working youcan just delete device, corresponding to mouse in Device Manager,then scan for new devices. Or useSETUP.EXE -> [All] or [with Problem] or [with HIDUSBF] Devices ->[Filter On Device] is Unchecked -> [Restart]

7. Contacts.You can access the newest version at this link:https://github.com/LordOfMice/hidusbf

Recent infohttps://www.overclock.net/threads/usb-mouse-hard-overclocking-2000-hz.1589644/(the end of the first post and recent posts in thread)

Good luck in overclocking mice :) SweetLow

5. History.

Added 2024/07/23:

1. The latest version of drivers are signed by Microsoft Attestattion Signing.Thanks to Battle Beaver Customshttp://www.battlebeavercustoms.com/At this point there should no longer be a problem with Secure Boot,but see Warning 2.The process of modification the drivers to work with Memory Integrity enabledis in progress but not finalized at this time.
2. Setup

• modified for the installation of new drivers: starting with Windows 8.1drivers with the setup information HIDUSBF_AS.INF and the locationin AMD64_AS / NTx86_AS are used
• as a thank for the signed drivers added a link to Battle Beaver Customs(visible if runs on OSes for which new drivers are used).
• [About] added

Added 2024/04/09:

1. Setup

• added uninstalling service in Setup.EXE (mouse right button click on[Install Service])

Added 2022/07/18:

1. Setup

• added message on USB Low Speed devices overclocking to higher USB Speed Class

Added 2022/07/13:

1. Setup

• USB High Speed devices support
• OS Version and Bus Speed name on [Copy IDs]

Added 2021/04/02:

1. Setup

• correctly shows long error messages

Added 2020/06/05:

1. Setup

• added check for hidusbf service can run

Added 2020/03/29:

1. Setup

• real versions of files on Copy IDs on modern OSes
• VIA xHCI Controller Driver (XHCDRV.SYS) marked as good

Added 2019/10/26:

1. Setup v2.0

• literally everything is improved:the form is simplified,display of the whole essential information added,all reasonable checks are implemented

Added 2019/06/21:

1. Improved Setup

• added check for the presence of an runnable driver service at the timeof installation filter on device

Added 2018/12/16:

1. Improved Setup

• added "CopyIDs" button to copy DeviceInstanceID and HardwareIDs(for use in any external program restarting device (using atsiv method))
• added dpiAware tag to manifest

Added 2017/01/08:

1. Setup now always wants/asks to run with Admin rights under modern Windows.

2. Added a note about disabling Secure Boot to run driver under Windows 10 x64version 1607 (Anniversary Update).

Added 2016/05/01:

1. Drivers was signed by kernel mode sign - no Test Mode needed for x64versions now. Thanks to people from OCN (www.overclock.net):

ownage11Bucakekr0wqsxcvRegulationsAlya

And my special thanks to jeshuastarr - as signing process organizer.

2. And drivers for overclocking up to 8000 Hz included now. Details on OCN:http://www.overclock.net/t/1589644/usb-mouse-hard-overclocking-2000-hz(and in README.2kHz-8kHz.ENG.TXT from jeshuastarr)

Added 2016/03/10:

1. Improved Setup:

• generalised code of USB HID device detection (and now it workswith the Xbox 360 controllers)
• interface was made more user-friendly and foolproof
• added command line switch: /all (setup.exe /all) - allows you to setdriver for any USB device (under your personal liability)

Added 2016/01/30:

1. Fixed bug in code of patching driver of USB3.0 controller (USBXHCI.SYS)Bug can observed, for example, when USB audio device managed by USB3.0controller stop working.

Added 2016/01/23:

1. Now Setup can install driver for Composite USB device

• use checkbox "Process Parent". Note, there is overclockedall functional devices from composite device, not the mouse only.For this feature functioning recompiled old drivers for Win 98&ME, 2000.

2. I was surprised to learn that some people use driver to change rate ofFull Speed USB mice. So, nonpatching version of x64 driver returned to packageand such kind of using described in Installation section.

Added 2016/01/02:

1. Driver now compatible with Windows 8, 8.1, 10. And both USB stacks supported:USB2.0 (USBPORT.SYS) and USB3.0 (USBXHCI.SYS)

Added 2015/04/06:

1. Much of fixing and enhancement in Setup:

• "Restart" button now really :) works under x64;
• USB HID mouse detected in multifunctional devices;
• installed filter can be undoned on nonstarting devices(unsigned driver at x64...) - with unchecked "Mice Only";
• add parent device column.

Added 2009/02/11:

1. Driver (patcher of USBPORT.SYS) works in Windows 7 x64 now.

Added 2009/02/03:

1. To load driver under Vista x64 SP1 you can use "Test Mode" method.See DSEO program:http://www.ngohq.com/home.php?page=dseo

Added 2008/04/22:

1. Setup now aware of Windows x64. Don't forget - under Windows Vista 64 bitdriver will load only with disabled driver signature enforcement.

Added 2008/04/19:

1. Windows Vista 64 bit checked and work (with disabled driversignature enforcement).

Added 2007/05/16:

1. Windows Vista 32 bit checked and work. In principle, version for XP x64may work under Vista 64 bit, however AFAIK there is requireddigitally signed driver...
2. Documentation rewritten.
3. Patched USBPORT.SYS move into separate archive.

Added 2006/09/30:

1. Drivers for 98/ME and 2000 shrink to fit in one page.
2. DRIVER folder and HIDUSBF.INF reordered.

Added 2006/01/12:

1. Below-mentioned development is executed for XP x64.Thank Dark_Cloud once again for recurrent testing.

Added 2005/12/26:

1. Driver was enhanced - for its installation under XP is NOTrequired to install corrected USBPORT.SYS. However, if there is observedsome anomalies - you may go back to old working sequence(corrected USBPORT.SYS + driver in the folder DRIVER\STD).Thank Alan 'Strider' Kivlin for the idea of patching the codeof USBPORT.SYS on the fly.Thank Root for valuable link for implementation.The same development for Windows XP x64 is still not done - there is adifficulties with testing.

Added 2005/08/08:

1. Translation was executed into English.Job was done by TimFortress (email:mofey@front.ru) 2005/07/22(*) in text above is translator additions.

2. In case of HIDUSBF service wasn't installed under Win x64 through Setup.EXE(button "Install Service") you may try to do this by OS standard possibility:mouse right button click on HIDUSBF.INF -> Install

3. There was added possibility to uninstall HIDUSBF service and file:mouse right button click on HIDUSBFU.INF -> Install

Added 2005/05/31:Written documentation (in Russian).

Added 2005/04/10:Developed driver for Windows XP x64. Tested by Dark_Cloud.

Added 2005/01/19:Written GUI installer - SETUP.EXE

2004/12/28:Initial version, presented in article on overclockers.ru