Forgot pc passcode one D257-13659 - Acer Aspireone Aod255e-1802 Netbook Pc 1.50ghz Atom N550 250gb Hdd 1gb Ram Win 7

I would just take it to a instore mobile phone repair man/or lady usually chinese are great at what they do not expensive .

If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled Follow these steps if you've forgotten your passcode, or if a message says that your device is disabled.
Forgot passcode for your iPhone iPad or iPod touch or your device is...

JUST RESTORE YOUR PHONE IN DFU MODE WITH LATEST UPDATE
ALL DATA WILL BE LOST SO BE SURE TO BACKUP ALL

FOR DFU MODE
CONNECT YOUR PHONE TO PC
HOLD POWER + HOME BUTTON WHEN SCREEN GOES OFF
COUNT UPTO 6 AND RELEASE POWER BUTTON WHILE HOLDING HOME BUTTON

iPhone must be recovered on a PC or Mac to solve this problem.

CLICK HERE

There is no way to unlock it as a passcode also prevents other people from unlocking it to access your data. What you could do is put it into recovery mode and then do a restore which will wipe all data, assuming you have a backup, you can just restore the data.

Forgot iPhone 4 password? take it easy, there is pro article to help you: http://www.windowspasswordsrecovery.com/iphone/forgot-iphone-passcode.html

forgot iPhone 3G passcode? The tutorial will help you much: http://www.windowspasswordsrecovery.com/iphone/forgot-iphone-passcode.html

Try booting in safemode by tapping the F8 key till u see an options screen,choose safemode and you will get to the logon screen,choose Administrator.You should be able to get into user accounts and take off the password option in your main account and then make a new one...make sure to write it down:)

The default passcode is 0000 or 00000 or 00000000

During your Yahoo Sign up it would have Asked you for a Secondary E-Mail incase you forgot your passcode, If you didnt have one contact Yahoo Customer Support at 1-866-562-7219 and Answer a few Personal questions such as your name, birth date, and security Question and they will re-set it for you.