Useful guide to remove battery from the mainboard to remove/clear power on password of laptop or desktop computer. With this guide, if your forget the power on password, you can solve the problem yourself.
Guide to remove forgotten power on password:
Guide to remove forgotten power on password for desktop computer
Windows Login Password is the most widely used option to protected a computer, but it is the easiest one for resetting or recovering compare to Power on password and HDD/SSD password.
From the following video, you will see that a Windows forgotten Password can be reset in 5 minutes.
The following video shows you how to remove or reset a power on password by removing the battery of the laptop. From the video guide, we can see that it is very to remove or clear a power on password.
Also, I want to find some ways to reset or remove forgotten password for HDD or SSD. I tried HDD password unlocker, PC3000 and hdd_pw, but none of them works with my Toshiba Q300 Pro SSD. Many video guides on youtobe.com show show to remove a HDD password, I found those ways don't work on my HDD and SSD. If you have good solutions to remove a forgotten hdd/ssd password, please do tell us.
Now, I think you have the idea which password protection is the best. So if your computer and HDD/SSD support HDD/SSD password setting, please set a HDD/SSD password to keep data safe on disk. See this article how to set a hdd/ssd password to check whether you laptop supports HDD/SSD password and set a password to your hdd/ssd.
If you forgot open password to office(word/excel/ppt/outlook/access) document, you want to find a great software to recover the lost password in a short time. Here I will show you how long to recover a lost office password with a personal computer.
Office Word 2003 document & Office Word 2016 document
The above data is tested from a personal computer which is worth about $600. The recovery time is maximum recovery time. The really time is sure shorter than the maximum recovery time.
From these data, we can find something interesting:
If we use office 2003 and a simple password to encrypt a office document, the password will be recovered in a few second.
On Test 1, if the password length increases 5, the recovery time will One hundred thousand fold increases. Through calculation, I found that the password length increases one, the recovery time will 26 fold increase.
On test 2, if the password length increases 5, the recovery time will increase Tens of millions of times or more. Through calculation, I found that the password length increases one, the recovery time will increase 92 times.
On test 2, if the password consist of Uppercase letters, lowercase letters, and special characters, maximum recovery time is ten thousand years. From the result, we can see a strong password is very hard to recover with a personal computer.
Suggestion for keeping your office document safe:
Use the last office version you have to encrypt office document.
Use strong password, includes Uppercase letters, lowercase letters, and special characters, and the password length must be 15 or more.
Keep the password and don't forget it.
Suggestion for speeding up password recovery:
Use high performance computer to recover password.
Use Two or more computers recover password. See how to use two or more computer to recover office password.