StonedMachine

The PC problems I solved. :)

[stonedmachine]

mpfilt.sys versus USB port

I’m a very lazy person, my laptop can tell the truth about it. If my PC is clean after a successful spyware/virus scan, the next they something comes back. On my laptop I have two Windows 7 OS. One for work, one for everything else. I had a problem with my USB ports for months with the “freetime” OS (:P) I didn’t know what caused the problem, but every time i started the computer, the USB ports were not functional. I had to check the device manager and disable every usb port, and the re-enable them. Every time. I was too lazy to reinstall the OS and set every single program/driver operational after it. I serached for weeks for the solution. When I installed SUPER AntiSpyware, the program filtered out the suspicious files. Then I found the mpfilt.sys file that caused my problem. I found the solution on a forum (after thousands of searches), so I thought I share it, it could be useful for someone.

Enough from the speech, here’s the solution:

USB corrupted by filters - polished

Navigate to C:\Windows\syswow64\drivers rename mpfilt.sys to mpfilt-USBerror.sys restart your machine

Launch RegEdit Start Menu ==> run ==> regedit Note: You can also launch RegEdit using the Start Menu Search box ==> regedit, then DblClick regedit presented in the search results

In RegEdit Navigate to HKEY_LOCAL_MACHINE\system\currentcontrolset\services\mpfilt

delete the mpfilt key

Navigate to HKEY_LOCAL_MACHINE\system\controlset001\services\mpfilt

delete the mpfilt key 

Note: mpfilt might exist on additional control sets, check each controlset(002,003,010...)\services\mpfilt

delete the mpfilt key

Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}

delete value "Lowerfilters "

Navigate to HKEY_LOCAL_MACHINE\SYSTEM\controlset001\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}

delete value "Lowerfilters "

Navigate to HKEY_LOCAL_MACHINE\SYSTEM\controlset002\Control\Class\{36FC9E60-C465-11CF-8056-444553540000} .

delete value "Lowerfilters "

Navigate to the top of the RegEdit window "Computer" (in regedit)

Search for mpfilt - it is important to search only for mpfilt - you don't want to find mpflt or mpfilter.

-> RegEdit Search: regedit edit menu -> select find -> enter mpfilt in the search box.

-> Mark Checkbox labeled "Match whole string only"

-> click "Find Next" button until you get the "Finished searching through the registry" message, Click OK

If mpfilt was found when you searched, you probably just missed one. That's why you did the search.

- make sure that it is mpfilt and the key is a service in a controlset, then delete the key

Close RegEdit, restart your machine, and you're done

[stonedmachine]

Solution - Driver compatibility for Windows 7 - Mustek 1200UB Plus

 Mustek 1200 UB Plus

 Almost a year ago I bought this scanner from second-hand. At the beginning I used Windows XP on my PC, and the driver worked properly. After a few months I switched my OS to Windows 7. Everything was fine, except the scanner's driver. Now I know what should I do.

Let's see:

"Compatibility". It was always a craziest way. If you want to install the drivers with the setup utility, you get this error message:

Solution:

Every version of Windows has a registry database. The OS stores a lot of settings of  itself and softwares(utilities, games, etc.) for proper working. For a simplified example: "what are you", "what's your version number", "where is your location on your hard drive", etc. This is the place what we looking for. To run the registry editor, we must open start menu, then type here the following:

Type the following: "regedit" then hit enter.

The registry editor's main window pops up.

In this utility, you must find this path:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

When you done with the path-finding, look for the following line on the left side of registry editor:

Double click on "ProductName" to edit this line. You will get this window. You must change the text in the second text-box (named "Value data" on english Windows 7).

Important! In my case it contains the following text: "Windows 7 Home Premium". If you use another "type" of Windows 7 (Ultimate, business, etc.) you must save your own "Value data" to somewhere else (for backup purposes), like notepad text file. 

Change the Value data to the following: "Microsoft Windows XP". Then press OK.

Remember, after this driver-procedure, it is recommended to change back the "ProductName" value data to it's original value (in my case: Windows 7 Home Premium). Now you can close the Registry editor.

Let's try to run that driver setup again.

.Cilck here to see a little video of the setup procedure.

With the original driver settings, you can use the scanner's classic TWAIN driver too. It is more comfortable to use and there's a lot more settings you can configure than the Windows 7's scanner-utility.

Remember to change the "ProductName" value data to it's original state!

I hope this solution works for everybody :) this is a pretty good scanner, and I don't want to buy a brand new one just for this.

That's all!

[stonedmachine]

Hi! In the last few months I had this blog-idea, but now I'm well-motivated to start this. I opened this blog because I met a lot of issues with my old PC, and if I have solutions for some problems, I'm gonna share it. Driver-compatibility problems, tricks and anything else. I hope there will be interest for this stuff. :)