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How to bypass the system password on a Sony Laptop

I have a Sony Vaio VCN-SZ680 and cant remember the system password. I have not used this laptop for a long time but now I need it and need to bypass the system password. Is there a program or some way to reset this or get pass it.
Thank you. OP system is vista
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jodyreid
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jodyreid
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2 Solutions
 
Norm DickinsonGuruCommented:
In order to do this you will need to be able to take the laptop apart to a certain degree. I don't know how deep you will have to go with this particular model but in general terms you will disconnect from power, remove the main battery, and disassemble the laptop until you can locate the smaller CMOS battery on the motherboard. Disconnect that battery and leave it disconnected for 24 hours and the CMOS / BIOS password and all other settings should be reset to default - with no password. Somtimes that battery is easily accessible, other times it is under the keyboard or motherboard making it a very tedious job. Alternately contact Sony and they will help you once they verify ownership.
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Mr TorturSystem EngineerCommented:
Hi,
- if you are speaking of BIOS system password, well the expert above, Norm Dickinson, is fully right.
Maybe that guide could help you do your CMOS reset, or at least it will help you understand how it's done:
http://www.insidemylaptop.com/how-take-apart-sony-vaio-vgn-sz-series-laptop/

- if you are speaking of Windows system password that is another subject.
I would try second method of this link :
http://pcsupport.about.com/od/toolsofthetrade/tp/passrecovery.htm
you boot on a cd, you blank your password, and it's done.
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nobusCommented:
modern laptops keep the password  in a security chip - for anti-theft reasons
You can't remove the password, without knowing it !   -->  ( what good is a password that can be "repaired" ?)

resetting the bios does not help;  nor does removing the battery, since the password is not in there
you would need to know in what chip it is, and how to reset that
you have to turn it in to the manufacturer, and show proof of ownership - then they can help
or replace the mobo !
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Mr TorturSystem EngineerCommented:
Hi nobus,
well, I think even if the password is in a security chip it does not have its own source of power.
If you disconnect the laptop battery and CMOS the password should be reset, but I may be wrong, of course manufacturers must have think about that but I just don't see how.

By the way jodyreid I can't find anything about a Sony Vaio "VCN-SZ680" model, but a VGN-SZ680 exists. My previous link was already about "VGN" model but I didn't notice.
And this "VGN" model does not seem to be a really "modern" laptop since it has quite a few years already.
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nobusCommented:
it does not need to have it's own power - it's in an eprom - if you know what that is -not in ordinary ram / rom
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Mr TorturSystem EngineerCommented:
Ok nobus, well, you are surely right.
Nevertheless this laptop model is not really new and it would be great from jodyreid to tell us if its model is truly VCN-SZ680 Vaio, and if its concern is about bios password or OS password (if not why telling us "OP system is Vista"?).
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nobusCommented:
for the os - i always use nordahls password reset tool; you find it on the UBCD
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jodyreidAuthor Commented:
It is a VGN-SZ680 laptop. My eye's are starting to go and it is the BIOS that I need to reset
Thank you.
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Mr TorturSystem EngineerCommented:
Then I think you have to choose :
- either you go with nobus solution, which I think is good and safe ; but supposing your warranty is ended maybe you will have to pay the manufacturer support
- or try to open the box and disconnect CMOS, maybe your laptop is still enough old for this to work. But this is risky too, as you can damaged your laptop opening it

It depends if you want the safety, or if you want pay nothing, but paying nothing is always somehow risky.
And maybe you will have to pay nothing with the manufacturer support but I really doubt about that.
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nobusCommented:
the only other option i know is replacing the bios chip
there are some that do it on the net  : http://www.bios-repair.co.uk/Index.html
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jodyreidAuthor Commented:
I've requested that this question be deleted for the following reason:

I did not get an answer that could help me. Thank you for your help.
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Norm DickinsonGuruCommented:
I believe that my answer, removing the power source, main battery and CMOS battery, is the correct answer and matches advice I have received as supplied by Sony tech support for a similar laptop that I have had direct experience with. Performing that operation - or hiring it done - or sending the laptop back to the factory, will solve the problem. There is really no other answer to the problem other than a brute force password attempt routine which is quite unrealistic.
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nobusCommented:
youalso  never answered to one of us - what password did you want removed?
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Norm DickinsonGuruCommented:
Based upon the history of this user, with one other "solved" problem also awarded zero points, the user may not understand that points are free and as a member you can give away as many points as you want each month. You do not get charged extra for awarding points, but on the other hand it is the only reward the experts receive. We get points and if we earn 3000 or more in a given month, we get to gain status and also have free access to the tools on this site. Awarding points should be automatic unless nobody responds or the answers are just not useful at all.
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jodyreidAuthor Commented:
Thank you for your help
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