Autocad 2012 is a popular software for creating and editing 2D and 3D drawings. However, sometimes you may encounter a file that is password-protected and cannot be opened without entering the correct password. This can be frustrating if you forgot the password or received the file from someone else who did not share it with you. In this article, we will show you some methods to unlock Autocad 2012 files with password.

One of the easiest ways to unlock Autocad 2012 files with password is to use a password recovery tool that can crack the password for you. There are many tools available online that claim to do this, but some of them may be unreliable or malicious. Therefore, you should be careful when choosing and downloading such tools. One of the tools that we recommend is Autocad Password Recovery, which is a professional and safe program that can recover passwords for various versions of Autocad, including 2012. Here are the steps to use it:

1. Download and install Autocad Password Recovery from its official website.
2. Launch the program and click on Browse to select the password-protected Autocad 2012 file that you want to unlock.
3. Select the type of attack that you want to use to crack the password. You can choose from Brute-force, Mask, Dictionary, or Smart. Each attack has its own settings that you can customize according to your needs.
4. Click on Start to begin the password recovery process. The program will try different combinations of characters until it finds the correct password.
5. Once the password is found, it will be displayed on the screen. You can copy it and use it to open your Autocad 2012 file.

Another way to unlock Autocad 2012 files with password is to use a hex editor, which is a tool that can edit the binary data of any file. By using a hex editor, you can modify some bytes in the header of the Autocad 2012 file and remove the password protection. However, this method requires some technical skills and may not work for all files. Here are the steps to use it:

1. Download and install a hex editor, such as HxD, from its official website.
2. Open your password-protected Autocad 2012 file with the hex editor.
3. Locate the bytes A0 C4 D0 C4 A0 C4 D0 C4 in the header of the file. They should be near the beginning of the file.
4. Replace them with A0 C4 D0 C4 A0 C4 D0 C3. This will disable the password check in the file.
5. Save the file and exit the hex editor.
6. Open your Autocad 2012 file with Autocad. It should not ask for a password anymore.

In this article, we have shown you two methods to unlock Autocad 2012 files with password. You can use either a password recovery tool or a hex editor, depending on your preference and situation. However, we advise you to always backup your files before attempting any modifications, as there is a risk of data loss or corruption. We also recommend you to use strong passwords and keep them safe, so that you can avoid forgetting them or losing access to your files.