Proteus Posted July 3, 2008 Report Share Posted July 3, 2008 Yesterday the mouse on the family's pc was replaced. Its just a standard 3-button optical mouse, usb connection (Technika model TKOptM2, plug and play). The mouse worked fine but later in the day when i was using it the pointer was moving too fast for me and i went into the Control Panel> Mouse settings and reduced the speed, then applied it. It applied fine but as soon as i closed the Control Panel it reset to its default speed. This happened 3 times in a row so i decided to update the driver. Went into Device Manager and into the mouse's properties, clicked on Update Driver and it found one quickly enough, downloaded and started installing it. Mid-install it failed and gave me a BSOD. Now anytime i start the pc it goes to the same BSOD before it reaches the login screen. The pc starts fine when i have my mouse(Microsoft IntelliMouse 5-button) from my own pc plugged in instead. That mouse has been plugged into the family pc plenty of times so its still using its still using the same old driver.The problem is that if i start the pc up fine and then swap mouses the pc does the BSOD within seconds because of the faulty driver install. Which means i cant try and roll back the driver or download a new one. I also cant remove the faulty driver because with the intellimouse plugged in to start the pc fine, the standard mouse and driver do now appear in the device manager and ive not got anywhere near enough technical knowledge to find the individual files and remove them.Ive spent about 4 hours searching for fixes or related forum threads(including dell support and windows troubleshooting), downloading other drivers which then get removed again after they dont fix the problem, updated the intel inf drivers, downloaded and installed service pack 3 but the problem persists. My parents dont know where the windows discs are either, theyre not even sure if they got any with this dell pc. Its a Dell Dimension 5150 desktop.Windows XP Media Centre Edition, Service Pack 3Has up-to-date Norton Antivirus, and was recently defragmented.BSOD::IRQL_NOT_LESS_OR_EQUALSTOP: 0x0000000A (0x00A61936, 0x0000001C, 0x00000000, 0x804FA246)No specific file is mentioned, only says "Beginning dump of physical memory. Physical memory dump complete"There are no other hardware problems or anything like that(some forum threads related to 0x804FA246 say to check if the memory is ok), the pc worked perfectly before i tried updating the mouse driver, and still works perfectly when i use the mouse from the other pc. Seems like i need to roll back the driver but do it inside the files rather than the device manager, assuming a backup was made when trying to install the new one.Might be long and windy but im trying to give as much information as i can. help would be appreciated, thanks :) Quote Link to comment Share on other sites More sharing options...
Proteus Posted July 3, 2008 Author Report Share Posted July 3, 2008 I also cant remove the faulty driver because with the intellimouse plugged in to start the pc fine, the standard mouse and driver do NOW appear in the device manager and ive not got anywhere near enough technical knowledge to find the individual files and remove them.shud have been 'NOT': driver does not appear in the list. dont see anywhere to edit the first post. Quote Link to comment Share on other sites More sharing options...
-pops- Posted July 3, 2008 Report Share Posted July 3, 2008 The first thing to try (with the old mouse in place) is a System Restore to a time before the failed driver update was done.After rebooting you should be able to re-install the new mouse. If that doesn't work, come back and we'll take it from there. Do you have a full system backup? (I hope you answer yes to that question). Quote Link to comment Share on other sites More sharing options...
Proteus Posted July 3, 2008 Author Report Share Posted July 3, 2008 The first thing to try (with the old mouse in place) is a System Restore to a time before the failed driver update was done.After rebooting you should be able to re-install the new mouse. If that doesn't work, come back and we'll take it from there. Do you have a full system backup? (I hope you answer yes to that question).thnx for replying.I plugged the old mouse back in and tried a system restore. i tried 3 separate dates earlier than yesterday and each time it returned as 'Restoration Incomplete' and said no files were changed on the computer. On the date the problem happened (yesterday) and at the right time theres a system restore point saying "22:33:16 Update to an unsigned driver" which is the problematic one. after googling how to find which drivers are unsigned, i ran sigverif and got a list of all unsigned drivers. In the list none of the files were modified in the last year, should i still try to disable them all one by one? The webpage below was where i got the information from and of the 3 ways it mentions of how to disable them i tried the first 2 last night to try and find the faulty driver.http://support.microsoft.com/kb/308514The only drivers in the add/remove programs are the audio ones, and the mouse+driver that is causing the problem doesnt appear in the device manager because its only showing whichever mouse i currently have plugged in, and as i said in the first post - plugging in the new mouse gives me an instant BSOD.As for a full system backup, ive asked and the answer is no. my mum started a backup when Norton prompted for one, but after filling 3 discs and only backing up about 2% of the intended files it got cancelled. Quote Link to comment Share on other sites More sharing options...
Alan2273 Posted July 3, 2008 Report Share Posted July 3, 2008 Have you tried tapping F8 at start up, (some machines require F5 instead) and chose safe mode.If you can get into safe mode with your new mouse plugged in , then you can get to device manager and roll back the drivers. Quote Link to comment Share on other sites More sharing options...
Proteus Posted July 3, 2008 Author Report Share Posted July 3, 2008 Have you tried tapping F8 at start up, (some machines require F5 instead) and chose safe mode.If you can get into safe mode with your new mouse plugged in , then you can get to device manager and roll back the drivers.Yeh, i tried that fairly early on from windows troubleshooting i think. With the new mouse it still goes BSOD even in safe mode. can load safe mode with another mouse instead but again cant see the new mouse in the device manager without it being plugged in. Quote Link to comment Share on other sites More sharing options...
Proteus Posted July 3, 2008 Author Report Share Posted July 3, 2008 Its fixed now. I found out which of the unsigned driver files was causing the problem, removed it, and plugged the mouse in: No blue screen. Its now automatically installed itself, just as it did the first time it was plugged in, prior to me trying to update the driver. Oddly enough its also accepting the control panel changes as well, instead of resetting constantly like before.Incase it helps anyone else, the file causing the problem was:C:\WINDOWS\system32\drivers\amusbprt.sysIt was in the list of unsigned drivers i mentioned in a previous post, last modified in 2004.Since reattaching the mouse its now using mouclass.sys and mouhid.sys drivers. Quote Link to comment Share on other sites More sharing options...
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