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Re: Unable to start up/unlock computer
This laptop has a power on password. There are no backdoor passwords available and removing in BIOS battery won't fix this problem because the password is stored on an EEPROM chip.
I'm not sure which EEPROM chip is used in you model laptop, but if it is the Atmel 24RF08 chip then you can hack into this to recover the password. For information on how to do this go to :- http://sodoityourself.com/hacking-ibm-thinkpad-bios-password/
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If you can see the mouse arrow, the display adapter is working. Try right clicking on the desktop. If you get a popup display, select the VIEW option, and another popup should appear next to it. Look at the bottom of the list and ensure that the "show desktop icons" selection is checked. If not, click on it and see if the icons return.
Things you must consider while buying a New Laptop
1. Price of the Laptop - One should expect to pay more for a laptop than for a comparable desktop computer. You really are paying a premium for the added flexibility a laptop offers. One more thing to bear in mind is - laptops are much harder to upgrade than desktops, so you should look for a laptop that meets all of your needs from the beginning.
2. Life of Battery - While the big attraction of laptops is that they offer the freedom to use your computer anywhere, remember that this is not strictly the case. Take special care to note the average battery life of your laptop.
3. Type of Display and Size - Get the right type of Laptop screen as the screen of your laptop is the main interface that you will use to interact with it. Make sure that your laptop features a TFT screen; these screens give a brighter display which can be viewed from an angle. Non-TFT displays seem dim and have to be viewed from straight on. The downside to being so portable is that most laptops have smaller screens than desktop systems.
4. Connectivity - Most of the laptops offer the same connectivity options today, but if you have any special requirements you should be sure to make sure your laptop can meet these needs. For example, it would be very embarrassing to turn up to an important business presentation and discover that your laptop doesn't actually have the correct type of port to allow it to connect to your company network.
5. Power - Ensure your new laptop can meet the system requirements of all of the software you want to run on it. It really is worth buying the best you can afford when it comes to power, as you will want your laptop to last for years to come. Remember it is harder to upgrade a laptop, so make sure you have enough power for the foreseeable future.
Hope the above Tips will show you how to buy a laptop, and help you in making your next purchase.
I see that your Thinkpad T400 machine is locked and you are unable to make use of the machine.
to be able to unlock the machine power the system on once turned ON you will see a Lock icon on the center of the screen just press and hold down the FN key for at least 5-7 seconds or if possible untill the lock icons shows that it is unlocked.
Press the Windows logo key + U. This will open the ease of access center. Click on the keyboard icon. It will say, "make the keyboard easier to use" next to it. In some versions of Windows you will need to get to the option by pressing the left shift key five times rapidly.
Select "turn on sticky keys" and "turn on filter keys." Select "save." Your computer will now only make sounds when the keyboard is hit.
Follow steps 1 and 2 to unlock your keyboard. Unselect the "sticky keys" and "filter keys" and click on "save."
Lock your workstation. Press Ctrl + Alt + Del. A blue screen or a box will pop up that has a variety of options, such as restart or shut down the computer. Click on "lock this computer."
Lock your workstation using the keyboard. Press the Windows key and the L key at the same time. This will lock the computer. To unlock press the combination again.
If the Windows loading progress bar appears after turning ON the Computer and the Computer goes to the blank screen then perform the under given steps.
Press "CTRL+Shift+ESC" key combination to open the Task Manager window. Next, click on the "Applications" tab and click on the "New Task...." tab located on the bottom of the window. Then type "explorer.exe" and click "OK".
This would bring you back the Desktop icons and the taskbar.