Question about Dell Latitude C640 Notebook

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Laptop asking me for a password but was never password protected

My Dell Latitude C640 has locked me out. I cannot get access to my files or anything on the computer. It is asking me for a password and username but the laptop was never password protected since I am the only one who uses it. Rather than the usual screen that comes on to log in, it is a Windows XP screen that comes up w/o a picture and asks me to log in. Any suggestions how to reset it or get the usual screen to come on and log in?

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Re: Laptop asking me for a password but was never...

Just use oph crack, use it to find a password/username then go to control panel, classic view in the top left corner, user accounts, "change the way you log on and off" then select the "welcome screen" option. if this happens still, you might be pressing a "lock" buttom to turn your pc off.

Posted on Apr 29, 2007

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Remove or reset dell latitude c640 bios password

How to reset The Latitude C640 Bios password?!

1.First flip your laptop over and remove the battery, as well as any cables connected to the laptop.
2.Remove the screw latched into the memory panel on the bottom of the computer found near the rear.
3.Lift the panel off and expose the memory modules.
4.Seek for a small push-button and press it, holding it for about two seconds. Reassemble your laptop and start it up.

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What would the default password be as my dell latitude c640 is now asking for one after it crashed

If it is a BIOS or a HDD password, then there is no universal default password and you will need to contact Dell details here:
Since it is a Latitude C Series, it has lifetime free phone support from Dell
If it is a windows password

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It ian't a big deal, one phone call to Dell Technical support 800-624-9896 Verify that you are an authorized user of the system, and they will generate a master password for the system. (If out of warranty, there may be a support fee)

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If it is a passwd set in the bios...good luck. You may have to download a disc from
If it is a windows passwd after the dell splach screen tap F8 this brings up the Advanced Startup Menu. Select safe mode and log in as the administrator. From there you can remove or change the password for all accounts. If there was never an account setup on that laptop and the Administrator account is being used then you will need a disk fron to retrieve that password.

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I am not sure what your question means.

But if your are asking how to make work infrared you do that in Bios.

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