I forgot my password for my new imac and dont have da disk..

I find I save a lot of headaches by having a note book and writing all pass words and information in it and storing it in my dresser drawer. If I delete one and get a new one mark the note book and put in the new one.

Every Log-in page has a link for "Forgot your Password?" which will get you to the procedure for creating a new one.

What password you forgot, Windows password, Windows 8 or Windows 7 password?
How to reset Windows 8 password:
http://www.isunshare.com/windows-8-password/how-to-reset-windows-8-password-without-disk.html

How to reset forgotten Windows 7 password:
http://www.isunshare.com/windows-7-password/forgot-windows-7-password-no-reset-disk.html

Step 1:

Turn off your iMac G5

Step 2:

Power it back on. Right when you hear the startup sound, hold down Command and S together. This will bring up a black and white terminal prompt.

Step 3:

If at this point, it asks for a password (firmware password), power back down the iMac, change the amount of RAM (remove one stick of RAM and leave the other in), turn the computer back on and when you hear the start up sound hold down Command + Option + P + R. Keep holding until it restarts again. Once it restarts again, let it boot up, then shut it down again and put the stick of RAM back in. This will reset the firmware password and should allow you to continue onto the next step.

Step 4:

Once you are successfully at the command prompt, type the following commands, pressing enter after each line.

mount -uw /
rm /var/db/.AppleSetupDone
shutdown -h now

Step 5:

That's it! Once you boot back up, you should have a brand new administrator account that you can use to access all files and remove other accounts.

Boot of the original system disk and open Disk Utility. This will give you an option to reset the admin password.

The only way to change the password is to have a system disk which you could pick up on ebay (Snow leopard would do)

Reset 10.5 Leopard & 10.6 Snow Leopard password

1. Power on or restart your Mac.
2. At the chime (or grey screen if your chime is turned off), hold down Command+S on your keyboard to enter single-user mode.
3. Type mount -uw / and press Enter.
4. Type launchctl load /System/Library/LaunchDaemons/com.apple.DirectoryServices.plist and press Enter.
5. Type ls /Users and press Enter. This lists all of the usernames on the computer - helpful if you don't know or remember what these are.
6. Type dscl . -passwd /Users/username password and replace "username" with one of the users displayed in the previous step. Replace "password" with a new password of your choice. Press Enter.
7. Type reboot and press Enter.

Reset 10.4 Tiger password

1. Power on or restart your Mac.
2. At the chime (or grey screen if your chime is turned off), hold down Command+S on your keyboard to enter single-user mode.
3. Type sh /etc/rc and press Enter/Return.
4. Type passwd username and replace "username" with the short name of the user account for which you'd like to reset the password.
5. Type your desired password and press Enter. It won't show itself on the screen, so be careful what you type. You will most likely have to enter it again to confirm.
6. Type reboot and press Enter.

Try this :-
Creating a new Admin on Mac Os X: Here's how to reset your OS X password without an OS X CD.
1. Reboot 2. Hold apple key + s key down after you hear the chime. (command + s on newer Macs) 3. When you get text prompt enter in these terminal commands to create a brand new admin account (hitting return after each line):
mount -uw / rm /var/db/.AppleSetupDone shutdown -h now
4. After rebooting you should have a brand new admin account. When you login as the new admin you can simply delete the old one and your good to go again!
Apple stores wont reset it for you. Computer shops may have charged you $50 to $200 trying to reinstall the Mac.

Hi,

It is simple turn off your pc.Restart and press the F8 key repeatedly until you get a menu that has an option to go into safe mode. Select the relevant option number then press enter.
Then it wont ask you for any password,just go to control panel>user accounts>add or remove user account,here change your password or remove it. Thats it you are done,shut it down and thn restart it and at your welcome screen enter da new pass.

Goodluck,
Dont forget to rate me as fixya...

Hi,

It is simple turn off your laptop.Restart and press the F8 key repeatedly until you get a menu that has an option to go into safe mode. Select the relevant option number then press enter.
Then it wont ask you for any password,just go to control panel>user accounts>add or remove user account,here change your password or remove it. Thats it you are done,shut it down and thn restart it and at your welcome screen enter da new pass.

Goodluck,
Dont forget to rate me as fixya...