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I have run tests which indicate that I do not have a hardware problem. I am wondering if there is a way to boot in single-user mode and modify settings to avoid having to use the login application when starting up as this is crashing, preventing me from reaching Finder, even in safe-mode.

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You should start the computer with the OS X installation disc in the drive and go to Utilities.

Posted on May 05, 2011

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How to access my laptop without a password


Mac OS X: How to start up in single-user or verbose mode You can use key combinations to start up the computer in either single-user mode or verbose mode. These may be used for troubleshooting or software development.Starting up in single-user or verbose mode
    1. Shut down your Mac if it is on.
    2. Press the power button to start the computer.
    3. Immediately press and hold the Command key and one of the following:
    • the "s" key for single-user mode. (Command-S)
    • the "v" key for verbose mode. (Command-V)
You have successfully entered single-user or verbose mode when you see white text appear on the screen.To exit single-user mode type reboot then press Return. Verbose mode exits automatically when the computer's startup process progresses sufficiently and the blue screen appears. Use the s option
Type sudo passwd (username)
Type exit
reboot
password is changed

Mar 18, 2014 | Apple 13.3 MacBook Air 1.6GHz 2GB RAM...

1 Answer

Macbook pro 13" crashes while booting.


Have you tried booting off of your restore disc? During startup you can boot from a CD, DVD, or thumb drive by holding "C" while booting. You can also try starting into recovery system by pressing "R" and "command" keys while booting, but I'd reccommend trying the bootable disc method first. Hope this helps!

Nov 24, 2013 | Computers & Internet

1 Answer

What do i do when my emachines laptop loops the title screen


Is it on a boot loop ?
Check to see if there are any keys stuck/depressed. If so, use a paperclip and fit it underneath the key and gently pry the end that is stuck. Make sure the laptop is off before attempting this. Observe where the boot process ends and starts over. In most cases, this will give an indication where the problem occurs. If the laptop reboots early on in the process, for example when it is detecting the hard drive, chances are good it is a hardware issue. If the reboot occurs further along in the process, like when it is loading operating system files, there may be an issue with operating system software. Boot in safe mode or the operating system equivalent. Windows, Unix/Linux and Mac operating system have a mode that will load the minimum software needed to boot. This is a standard approach in troubleshooting, as it only supports the minimum hardware needed to complete the boot into the operating system. Once you are logged into the computer, device drivers can be updated, software removed and so forth. To boot into safe mode in Windows, hit the "F8" key when the computer first starts up to get a submenu. From there select a boot option. Many choose "Safe mode with command prompt" as this will go line by line through the boot process, allowing you to isolate where the problem might be. To boot into a different run level in Unix/Linux, it depends on the version of Unix/Linux, but most have the option of a "recovery mode." During boot hit the "Esc" or "E" key and select the mode appropriate such as "drop to root shell," etc. If you have the ability to get into command shell, enter into run level 1 (single user mode) by typing in "init 1." To start in safe boot on a Macintosh laptop, hold the "Shift" key as it boots up. This forces a disk check and loads minimal software in efforts to complete the boot process, much like the other operating system's "safe modes." Check to see if your laptop is overheating. Laptops have a greater likelihood of overheating than desktops. Either touch the laptop or download an application such as Mobile Meter to check laptop temperature. If it is running hot, try using canned air to clear out of vents, etc. Also, elevating the laptop off of its resting surface allows greater airflow in and out of the laptop

Feb 18, 2013 | Computers & Internet

1 Answer

Acer aspire one model zg5 is in a loop of erecovery management and gives error message cannot format the object drive


If you mean laptop is in boot loop ?

Check to see if there are any keys stuck/depressed.

If so, use a paperclip and fit it underneath the key and gently pry the end that is stuck.


Make sure the laptop is off before attempting this.

Observe where the boot process ends and starts over.


In most cases, this will give an indication where the problem occurs.

If the laptop reboots early on in the process, for example when it is detecting the hard drive, chances are good it is a hardware issue.


If the reboot occurs further along in the process, like when it is loading operating system files, there may be an issue with operating system software.


Boot in safe mode or the operating system equivalent.

Windows, Unix/Linux and Mac operating system have a mode that will load the minimum software needed to boot.


This is a standard approach in troubleshooting, as it only supports the minimum hardware needed to complete the boot into the operating system.


Once you are logged into the computer, device drivers can be updated, software removed and so forth.


To boot into safe mode in Windows, hit the "F8" key when the computer first starts up to get a submenu.


From there select a boot option. Many choose "Safe mode with command prompt" as this will go line by line through the boot process, allowing you to isolate where the problem might be.


To boot into a different run level in Unix/Linux, it depends on the version of Unix/Linux, but most have the option of a "recovery mode."


During boot hit the "Esc" or "E" key and select the mode appropriate such as "drop to root shell," etc.


If you have the ability to get into command shell, enter into run level 1 (single user mode) by typing in "init 1."


To start in safe boot on a Macintosh laptop, hold the "Shift" key as it boots up.


This forces a disk check and loads minimal software in efforts to complete the boot process, much like the other operating system's "safe modes."


Check to see if your laptop is overheating.

Laptops have a greater likelihood of overheating than desktops.


Either touch the laptop or download an application such as Mobile Meter to check laptop temperature.


If it is running hot, try using canned air to clear out of vents, etc.

Also, elevating the laptop off of its resting surface allows greater airflow in and out of the laptop


hope this helps

Nov 27, 2012 | Acer Aspire One PC Notebook

1 Answer

At first it freeze but when you continuing restarting it, it come but now it cant come again


Check to see if there are any keys stuck/depressed.

If so, use a paperclip and fit it underneath the key and gently pry the end that is stuck.


Make sure the laptop is off before attempting this.

Observe where the boot process ends and starts over.


In most cases, this will give an indication where the problem occurs.

If the laptop reboots early on in the process, for example when it is detecting the hard drive, chances are good it is a hardware issue.


If the reboot occurs further along in the process, like when it is loading operating system files, there may be an issue with operating system software.


Boot in safe mode or the operating system equivalent.

Windows, Unix/Linux and Mac operating system have a mode that will load the minimum software needed to boot.


This is a standard approach in troubleshooting, as it only supports the minimum hardware needed to complete the boot into the operating system.


Once you are logged into the computer, device drivers can be updated, software removed and so forth.


To boot into safe mode in Windows, hit the "F8" key when the computer first starts up to get a submenu.


From there select a boot option. Many choose "Safe mode with command prompt" as this will go line by line through the boot process, allowing you to isolate where the problem might be.


To boot into a different run level in Unix/Linux, it depends on the version of Unix/Linux, but most have the option of a "recovery mode."


During boot hit the "Esc" or "E" key and select the mode appropriate such as "drop to root shell," etc.


If you have the ability to get into command shell, enter into run level 1 (single user mode) by typing in "init 1."


To start in safe boot on a Macintosh laptop, hold the "Shift" key as it boots up.


This forces a disk check and loads minimal software in efforts to complete the boot process, much like the other operating system's "safe modes."


Check to see if your laptop is overheating.

Laptops have a greater likelihood of overheating than desktops.


Either touch the laptop or download an application such as Mobile Meter to check laptop temperature.


If it is running hot, try using canned air to clear out of vents, etc.

Also, elevating the laptop off of its resting surface allows greater airflow in and out of the laptop


hope this helps

Oct 22, 2012 | Acer Aspire 3002LCi Notebook

1 Answer

Code F1, will not run


Keypad/User Interface Failure

F then 2 flashes when in:
Diagnostics Test mode if a stuck key is detected.
Standby mode if there is a user interface mismatch.
DISPLAY (Saved Code) EXPLANATION AND RECOMMENDED PROCEDURE

Console and Indicators
This test is performed when any of the following situations occurs during the Console and Indicators Diagnostic Test:


None of the indicators light up No beep sound is heard Some buttons do not light indicators None of the indicators light up:
1. Perform steps in Accessing & Removing the Electronic Assemblies, and visually check that the P11 connector is inserted all the way into the machine/motor control.
2. Visually check that the user interface assembly is properly inserted in the console assembly
3. If both visual checks pass, replace the user interface assembly.
4. Plug in washer or reconnect power.
5. Activate the Console and Indicators Diagnostic Test mode to verify repair.
6. If indicators still do not light, the machine/ motor control has failed: Unplug washer or disconnect power. Replace the machine/motor control assembly.
Plug in washer or reconnect power. Activate the Console and Indicators Diagnostic Test mode to verify repair.

No beep sound is heard:
1. Perform steps in Accessing & Removing the Electronic Assemblies, and visually check that the P5 connector is inserted all the way into the machine/motor control. If visual check passes, replace the user interface assembly.
2. Plug in washer or reconnect power.
3. Activate the Console and Indicators Diagnostic Test mode to verify repair.
4. If replacing the user interface assembly failed: Unplug washer or disconnect power. Replace the machine/motor control assembly. Plug in washer or reconnect power. Activate the Console and Indicators Diagnostic Test mode to verify repair.


Some buttons do not light indicators:
1. Perform steps in Accessing & Removing the Electronic Assemblies, and visually check that the console electronics and housing assembly is properly inserted
into the front console. If visual check passes, replace the user interface assembly.
2. Plug in washer or reconnect power.
3. Activate the Console and Indicators Diagnostic Test mode to verify repair.


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Freezing up when booting up in the dell screen when it has been off for a will it will start to boot windows XP and dont go any farther thn the welcome screen before it freezes up. I tryed replacing the...


Have you tried booting from the original system CD? Another option would be to download and burn an ISO image of Linux Ubuntu Workstation 9.10 Live CD. Try to Boot from this CD. If it boots successfully, it should give you the ability to access your hard drive to retrieve your data. It might also indicate if your system is having a hardware issue. We have installed and run Ubuntu Linux and plenty of these machines with good success... great way to troubleshoot hardware functionality and allow access to data without loosing it.

Apr 12, 2010 | Dell Latitude D610 Notebook

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Compaq Presario-How to log on(XP) if don't know password?


Boot the computer into safe mode (tapping F8 while it is booting) and select the Administrator account. From there, go into control panel>user accounts.
Select the user account you need to access, modify password (you won't need to enter the current password in this mode).

Did this resolve your issue? If so, please rate it. ty.

Feb 28, 2010 | Compaq Presario 5000 PC Desktop

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How do I repair Mac OS X Version 10.4.11 on a 1.33 GHz PowerBook G4 with 1.25 GB of DDR SDRAM


Insert your installation disc ( disc 1 ) and hold down the C key and it should boot from the disc. Once booted you should get the menu as though you are going to re install it ( if you go to the tools menu I think it is ) you should be able to run chkdsk which you can use to check your hard drive and repair your hard drive. If it does not work and it states to start in single user mode then eject the disc and restart and hold down the apple ( command ) key and S and it should go into what looks like dos mode. Once in there you should be able to run a command similiar to

http://www.westwind.com/reference/OS-X/commandline/single-user.html

It should give you an example when you are in single user mode as to how to do it ( enter the relevant command ) and press enter and it should repair your hard drive ( if its repairable ).

If this is an operating system problem ie it wont boot into os x then as per above insert your disc 1 and hold down the C key after you reboot and then go through the process of installing it - there is an option to do an archive and install which will save your data from your previous install so long as you did not encrypt your home area ( if you encrypted your home area then you will lose that data in your home area and possibly else where )

If this is a hardware fault ie your hard drive does not work or it does not power up then you will need to take your laptop / computer to an apple certified person ( if you use google ) you should be able to find somewhere that can repair it for you obviously this will cost depending on how much they charge for labour and parts short of that go to an apple store and seek advise from someone at your local apple store or call them.

Apr 10, 2009 | Computers & Internet

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