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Wifi connection crashes the computer

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#1 yeky83


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  • Local time:11:56 AM

Posted 02 January 2013 - 07:25 PM

Hi, I'm trying to fix up a laptop for a friend. It's a Toshiba Satellite L555-S7005, running Windows 7.

When I connect to a wireless network (wifi), the computer slows down to oblivion. I don't understand. I've never seen a computer issue like this. So it goes like:

Turn on computer
Everything works fine, until...
Connect to wifi
The computer starts slowing down
~30 seconds later, freezes.
(sometimes goes into the blue screen of death)

What does work
The computer works fine in Safe Mode with Networking on. I can connect to wifi and the computer functions no problem in Safe Mode.

What I've tried
I've tried uninstalling, downloading and installing the wireless driver for this computer.
I ran Avast and Malwarebyte, full scans on both. It detected some things, and I deleted/quarantined them. No change in the problem.

So I have no idea what's wrong. Maybe it's a hardware issue? But computer works fine with wireless on in Safe Mode, so I don't think so...? If it's a software issue, not sure what to do.

Please help! Thanks!
(Not sure where this post would belong, so posting on Windows 7 forum section. Please redirect if needed.)

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