drImax Posted September 13, 2005 Share Posted September 13, 2005 hey all,a real long time ago i put a bios password on my laptop.its the bios password to get into the setup, not needed for regular boot.So basically I need to know how I can reset it.I tried all passowords I thought it could have been but nothing worked.Please help me.my laptop is a Compaq Presario 900Also I am sorry if I posted this in the wrong Forum. I thought this would be under "Security".-Dan Link to comment Share on other sites More sharing options...
godan Posted September 13, 2005 Share Posted September 13, 2005 well if you are ok working with pc hardware you could take the case off find the little battery that keeps a charge going to your bios and remove it for a sec, with the main battery not in yout laptop or plugged into its ac adapter, and then put it back in that will reset it. Link to comment Share on other sites More sharing options...
drImax Posted September 13, 2005 Author Share Posted September 13, 2005 thanks godan I think that will be what I will have to do.if i get my laptop back together i will post message.later Link to comment Share on other sites More sharing options...
ringfinger Posted September 13, 2005 Share Posted September 13, 2005 I would also recommend the same... removing the BIOS battery. However there are applications out there that can crate a boot disk to crack a BIOS password. I know these exist for Dell laptops especially as I've used one before. Try Google and if all else fails pull that battery. Good luck. Link to comment Share on other sites More sharing options...
nfm Posted September 13, 2005 Share Posted September 13, 2005 Well, removing battery can be dangerous, battery may leak if unproperly taken off, you can esaily break plastic that battery is kept in. I recommend clearing CMOS. Shorting two pins up 10 sec. will do it Link to comment Share on other sites More sharing options...
EchoNoise Posted September 13, 2005 Share Posted September 13, 2005 Well, removing battery can be dangerous, battery may leak if unproperly taken off, you can esaily break plastic that battery is kept in. I recommend clearing CMOS. Shorting two pins up 10 sec. will do it<{POST_SNAPBACK}>What ?!... Are you living in the 80's... Modern PC's and/or Laptops mostly have C sized batteries which are hard-cased... Ye olde 386's had black plastic casings which leaked... Link to comment Share on other sites More sharing options...
ramone_johnny Posted September 13, 2005 Share Posted September 13, 2005 Well, removing battery can be dangerous, battery may leak if unproperly taken off, you can esaily break plastic that battery is kept in. I recommend clearing CMOS. Shorting two pins up 10 sec. will do it<{POST_SNAPBACK}>you my friend, are teh gheyRJ Link to comment Share on other sites More sharing options...
Fox Mulder Posted September 13, 2005 Share Posted September 13, 2005 (edited) Also you can try with Cmos password recovery tools 4.6:CmosPwd decrypts password stored in cmos used to access BIOS SETUP.Works with the following BIOSes:- ACER/IBM BIOS- AMI BIOS- AMI WinBIOS 2.5- Award 4.5x/4.6x/6.0- Compaq (1992)- Compaq (New version)- IBM (PS/2, Activa, Thinkpad)- Packard Bell- Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107- Phoenix 4 release 6 (User)- Gateway Solo - Phoenix 4.0 release 6- Toshiba- Zenith AMIWith CmosPwd, you can backup, restore and kill cmosNB: AWARD 4.50 have a backdoor, a generic password : AWARD_SW (d8on for one of the short version)SOYO motherboard have "SY_MB" as master password for Award 4.51.CmosPwd give equivalent passwords for Award BIOS, not original one.http://www.cgsecurity.org/cmospwd.html Edited September 13, 2005 by Fox Mulder Link to comment Share on other sites More sharing options...
syedali Posted October 1, 2005 Share Posted October 1, 2005 Hi Guys!!I am using winxp,It's been fast and working perfectly.I setup Administrator password 1month before because every one open my system.But now i want to remove this password Any one please help me how to remove this Administrator password.anyone have any ideas?thank you.Without Recovery method any another method Link to comment Share on other sites More sharing options...
oneless Posted October 1, 2005 Share Posted October 1, 2005 i made a small program in pascalmaybe 10..12 years agosimply write all locations in cmos (where is stored the password)with 0 value .1 single condition : you must can boot any OS , because its an exe file .never tried on a laptop.normally after run of this programon a desktop, because of bad checksumthe bios invite you : "Press F1 or F2...bla bla "i can post it . maybe i can recover in my archieves the source.but is pascal . Link to comment Share on other sites More sharing options...
Mercury_22 Posted October 1, 2005 Share Posted October 1, 2005 (edited) Hi syedali!Change your Administrator password to blank! (i mean leave it blank)If you don't remember your current Administrator password check this out http://www.elcomsoft.com/prs.html#pspr(this is if your asking for win xp Administrator password. First is for both passwords bios and winxp) Edited October 1, 2005 by Mercury_22 Link to comment Share on other sites More sharing options...
syedali Posted October 1, 2005 Share Posted October 1, 2005 Hi syedali!Change your Administrator password to blank! (i mean leave it blank)If you don't remember your current Administrator password check this out http://www.elcomsoft.com/prs.html#pspr(this is if your asking for win xp Administrator password. First is for both passwords bios and winxp)<{POST_SNAPBACK}>I forgetted Administrator password.Didn't opening winxp professional.So many backup in c drive.Any idea! Link to comment Share on other sites More sharing options...
SyntaxError Posted December 3, 2005 Share Posted December 3, 2005 (edited) What ?!... Are you living in the 80's... Modern PC's and/or Laptops mostly have C sized batteries which are hard-cased... Ye olde 386's had black plastic casings which leaked...Are you on crack? I've had a dozen or so computers in the last 24 years and worked on hundreds of others. None have had a battery that large. Most systems from the 80's had a lithium battery about 3/4 inch diameter and a bit longer with a (usually)blue plastic heatshrink over it, and soldered to the motherboard. Sometimes they did leak but that was most likely caused by power surges since surge protectors for home use weren't in mainstream use yet. Some boards even had 2 pins next to the battery and came with a battery holder for 4 AA batteries so when the onboard battery finally failed, you could plug in the holder and keep the settings in the bios. I can't say what sort of bios battery laptops have, since I've never owned one.Modern mobos use a user-replaceable standard watch battery, a CR2032 to be exact. Edited December 3, 2005 by SyntaxError Link to comment Share on other sites More sharing options...
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