Class installer denied....

[valen7]

Help!

I ended up having problems with IE last weekend and so I had to do a repair/reinstall of Windows XP Pro. After doing so, I needed to reinstall some drivers, and one was the Canon WIA driver.

So I uninstalled everything Canon and then reinstalled the WIA driver (3.9.1; I have a G1). Then I connected the camera via USB and it "found" the G1 and wanted to install drivers for it.

No matter where I go from there, the "new device" wizard always ends up saying:

"The class installer has denied the request to install or upgrade this device."

I do NOT have a virus. I have tried manually picking the driver, manually deleteing the device and re-adding it, even manually removing all Canon stuff (by looking for Canon and powershot) in the registry and windows directory tree.

The official response I get from Canon is "all class installer problems need to be handled by the PC manufacturer." Lousy service -- didn't even TRY to help, just punted.

BTW, I am the administrator, and this is the 3.9.1 driver from Canon's web site.

Someone rescue me!

Thanks,
Peter

[Roumen]

Peter,

Your problem is not a Canon camera problem since your driver has been working before your uprage/repair.

My advice is to check Microsoft site http://www.microsoft.com/technet/tre...ro/default.asp
for the latest information.

You should also know that changing anything in Windows Registry settings could bring to unexpected results. In such case there is only one solution - new Windows installation.

Greetings,
Roumen

[willy77nilly]

Roumen, the most likely reason for this is that you are infected with the KLEZ strain of viruses.

follow the instructions provided by Norton Symantec to scan your system for this virus. These are stealth viruses and may not be detected by your Virus Scanner. There is a specific tool available from most virus software vendors for removing this virus.

http://securityresponse.symantec.com...klez.h@mm.html

[valen7]

Hi,

The problem was NOT a virus, as I mentioned in my original post.

Turns out my scanner driver was interfereing with the camera driver. I removed both and reinstalled both (not just the camera driver as I had been trying) and it worked.

-Peter

[MurrayW]

Go to Device Manager and uninstall all your USB - hub and drivers. Shut down computer and let XP or 98 reinstall USB and drivers. After numerous emails to Canon I found this worked for me after the "The class installer has denied the request to install or upgrade this device" message.

[picking]

Originally Posted by MurrayW

Go to Device Manager and uninstall all your USB - hub and drivers. Shut down computer and let XP or 98 reinstall USB and drivers. After numerous emails to Canon I found this worked for me after the "The class installer has denied the request to install or upgrade this device" message.

I had a problem with my camera too, and found this thread and it actually worked after uninstalling it through the device manager. Thanks.

[Immaculens]

wow, this thread was certainly resurrected! 2003....

[harcosparky]

Originally Posted by valen7

Hi,

The problem was NOT a virus, as I mentioned in my original post.

Turns out my scanner driver was interfereing with the camera driver. I removed both and reinstalled both (not just the camera driver as I had been trying) and it worked.

-Peter

That's the glory of Windows ...... device drivers fighting other device drivers .... Windows Auto-Updates destroying drivers.

Brings back memories of a audio card problem that I had setup and worked perfectly. Microsoft thought the knew better and tried to update the driver ... killing it. I did the unistall/reinstall trick and killed Auto-Update/

[sambarino]

For what it's worth, WIN7 (Home - 64). seems like the best behaved version yet. You think adding a device to WINDOWS can be a chore? Try recompiling the kernel and managing a RedHat 9.0 RPI. You will love Windows after that.

[harcosparky]

Originally Posted by sambarino

For what it's worth, WIN7 (Home - 64). seems like the best behaved version yet.

I agree.

Originally Posted by sambarino

You think adding a device to WINDOWS can be a chore? Try recompiling the kernel and managing a RedHat 9.0 RPI. You will love Windows after that.

I gave up on Linux long before I gave up on Windows, perhaps because I was employed in IT and Windows was a big part of that.

[sambarino]

Originally Posted by harcosparky

Perhaps because I was employed in IT and Windows was a big part of that.

Agreed. Windows has taken over. In the US at least. I started on a second career in IT about 8 years ago. I got really turned off by the antiquity of the program at Indiana University. They insisted I learn C++. OK, fine for an introductory course. I had already been using C# for my own purposes and found it much more powerful, and modern, than C++. They had never used C#! I tried to show them: All of the power of C++, the ease of VB, all the built in data types you could ask for, access to the processor, in protected mode anyway, and native ability to incorporate assembly language sub-routines. They wouldn't hear of it. It was then that I figured out that IT is ALWAYS going to be behind the cutting edge. The education has to come in the field and on the job, or you are learning last years standards. This is why the college kids in their dorms are so prolific. THEY are the cutting edge. I am retiring in March. Planning to try something else next year; nursing.