How to Install KB888111XPSP2.exe to Fix the Microsoft Bus Driver Error

in How To

I just noticed that a couple of people have been looking for a guide to install kb888111xpsp2.exe (kb888111xpsp2). This is usually needed for Realtek powered audio systems to run properly in most computers with Windows XP SP2. In case you get a Microsoft Bus Driver error, you might be missing this as well. Please take note that this file is for Windows XP SP2, its not intended for Windows Vista or in Windows XP SP3. Before we begin please download the kb888111xpsp2.exe here.

Before you install your Realtek audio driver make sure you have installed kb888111xpsp2.exe first. In case its not installed yet (and you installed the Realtek audio driver first), you’ll need to work around the error to fix it. Here’s what you need to do.

Right click on the My Computer icon on your desktop. Then go to the Hardware tab. Then click on the Device Manager button. Look for an icon with a yellow (exclamation) sign on it.

Right click on the PCI Device and uninstall it. Once uninstalled run kb888111xpsp2.exe, install it (reboot if it prompts you to reboot) and then install your Realtek audio driver. This fixed the error and installed the Realtek driver correctly on my laptop. Hope this helps, in case this didn’t solve your problem yet, put the details in comments and I’ll try to see if we can resolve it. ^_^


In case you are using Windows XP SP3, just unzip the archive then open device manager and update drivers from the folder commonfiles. Thanks to Ibiorio for this tip.


Installing Audio Fix5Tech Reviews

{ 69 comments… read them below or add one }

mohd.shakir April 7, 2012 at 5:03 pm

I got the Microsoft Bus driver error while installing Realtakh High Definition Audio drivers in my systme. I follow the above instructions but my problem didnot solve. i get the same problem while installing Realtakh High Definition Audio drivers.

revan May 16, 2012 at 9:00 am

does this work for windows vista?

Jeedo May 19, 2012 at 5:41 am

Hi mohd,

I suggest you update to Windows 7. I’ve already upgraded all my systems to Windows 7 64bit and I only use XP in a virtual system for sandboxing and testing purposes. I’m afraid I can no longer help you with this one.

Jeedo May 19, 2012 at 5:43 am

Hi revan,

Not sure about vista but this problem never occurred with Windows 7, I suggest upgrading to either 32bit or 64bit would be the best route.

kenneth May 27, 2012 at 5:13 pm

The above ex. file (KB888111xpsp2.exe) will not run …error message which is too long to insert here. Somethng to do with an invalid opperation.
How to run the exe. file?

Jeedo July 4, 2012 at 12:06 pm

Hi kenneth,

Sorry, can’t help much at this point. Your best bet would be to upgrade to Windows 7. It should address all your hardware driver problems.



Costel August 5, 2012 at 12:43 am

Wed I get an error like this 0xe0000227 what should I do?

Jeedo September 21, 2012 at 5:49 pm

Hi mihaila,

Like I’ve always recommended, I suggest you upgrade to Windows 7 (either 32bit or 64bit), the drivers are more complete and the system is more stable. I’m using Win64 7 ultimate and I’ve never been happier, only had to do one installation on all my computers, never had to do any re-install so far.


John January 3, 2013 at 5:42 am

hi bro, i have a problem with my pc, i bought a new headset, and the sound is pretty good, but i can’t use my microphone cause the realtek ac97 don’t see the microphone and don’t work, i try EVERYTHING and didn’t work. And the realtek hd audio doesn’t work in my motherboard. pls help me ^^

Jeedo January 7, 2013 at 9:00 am

Hi John,

It could be two things, the driver installed or your mic connector. If you are still using WinXP I highly suggest you upgrade to Windows 7, it should solve all your driver woes which unfortunately is too common on Windows XP.

pradeep January 30, 2013 at 11:33 pm

hiii , i re install windows xp service pack 2 , lost the sound , install realtek adio driver show this device cannot start (error code 10)
system information
OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Manufacturer INTEL_
System Model D945GCR_
System Type X86-based PC
Processor x86 Family 6 Model 15 Stepping 2 GenuineIntel ~1596 Mhz
Processor x86 Family 6 Model 15 Stepping 2 GenuineIntel ~1596 Mhz
BIOS Version/Date Intel Corp. CR94510J.86A.0049.2007.0522.1433, 5/22/2007
SMBIOS Version 2.4
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = “5.1.2600.2765 (xpsp.050928-1517)”
User Name OPERATION\admin
Time Zone India Standard Time
Total Physical Memory 512.00 MB
Available Physical Memory 135.89 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 1.20 GB
Page File C:\pagefile.sys
If this isn’t enough info, please tell me so I can add to it. If anyone can help it will be DEEPLY apprieciated!

Jeedo February 1, 2013 at 10:00 pm

Hi pradeep,

To be perfectly honest, I’ve let go of WinXP a long time ago. I suggest you upgrade your memory to 1GB and upgrade to Windows 7 to resolve your driver issues. Your system should be decent enough to run most office applications.

Aditya Yosua September 6, 2013 at 5:57 pm

Thank you master..!!!

David Stanely September 25, 2013 at 12:07 am

Try these techniques to fix this issue:

Install Windows Updates and Patches as Latest updates come with bug fixes. They contain corrections to software bugs.
Also Download Drivers from Device Manufacturer Website

If problem still occurs then try some other helpful techniques mentioned here:

Jeedo December 16, 2013 at 2:58 am

Hi David, thanks for the share.

mithun May 5, 2014 at 6:35 am

i am having windows 7.Whenever i try to install KB888111XPSP2.exe for microcontroller uaa bus there is a error coming “not enough storage is available to process this command”..but i am having 10 gb space in my c drive…please suggest solutions….

Jeedo May 11, 2014 at 11:15 pm

Hi mithun,

This solution only applies to Windows XP. Windows 7 shouldn’t have any problems detecting Realtek audio hardware. If it is, please check your laptop/computer manual and see what audio card you have specifically.

rahman October 17, 2014 at 9:25 am

im can not downlowd kb888111xpsp2.exe

Jeedo November 1, 2014 at 4:13 pm

Hi rahman,

Sorry, I’ve already moved to Windows 8 not much I can do in here.

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