You should first select the directory in which the tables are installed on your computer and then the selected table type in the box will be automatically updated depending on the table type you chosed. Only SSTIC04-10k and SSTIC04-5k are available for free. More on this here.

You're trying to load hashes from encrypted SAM recovered from a Windows partition, but ophcrack does not find SYSTEM and SAM files needed for this operation. Be sure to select a directory containing both files. If it's still don't work, you can try to manually retrieve hashes with bkhive/samdump2 and then load this file as a PWDUMP file.

There are two explanations. First, all the passwords are longer than 14 characters and thus their LMhash is empty. It's more probable that LMhash has been disabled on this machine. You should try to break these hashes with NThash tables.

The file you tried to open doesn't contain any valid hashes or is not formatted correctly for ophcrack. It should comply to one of these formats:
<lmhash / 16 bytes>
<lmhash / 16 bytes>:<nthash / 16 bytes>
user:id:<lmhash / 16 bytes>:<nthash / 16 bytes>:::

No, these tables are neither optimized nor fast. We will not add any support for such tables in the future.

Both SSTIC04-10k and SSTIC04-5k cover 99.9% of alphanumeric passwords. They have approximatively half of the passwords that are exactly the same (5000 first columns of 15'400'000 perfect chains) and the others are randomly selected. Therefore, using one after the other should improve the overall percentage of passwords covered. But you will remain between 99.9% and 100%.

We do not provide any tool for computing your own tables. You can find everything you need to do this in the source code.

Some accents are plainly ignored by the LM hash algorithm, but never by the NT hash algorithm. When we finish cracking a LM hash we then try all possible accents until we find the password that matches the NT hash. With ophcrack 2.4 the following accents are supported:
È Ê Ë è ê ë Ù Ú Û ù ú û À Á Â Ã à á â ã Ò Ó Ô Õ ò ó ô õ Ì Í Î Ï ì í î ï
If there are too many combinations (e.g your password is made of 14 o's) ophcrack 2.4 may reduce the set of accents it tries.

Ophcrack installer includes pwdump6 from Fizzgig. This tool is often detected as malware by antivirus softwares (usually samdump.dll and pwservice.exe). These files are not infected, but categorized as evil software. If you do not feel safe installing ophcrack, you will find online source code for every tool it includes as well as the main program.

You can find many tutorials on the Internet that explains how to burn an ISO file on a CD. Google is your friend.

Make sure that you change your BIOS settings to make it boot from the CD drive. More on this.

Your graphic card is probably not well detected by the LiveCD. You should selecting another entry in the boot menu. If it still does't work, select the text version entry and change /etc/xorg.conf to make it match your graphic card. Then "startx".

There is a problem with your hardware detection. Try pressing the Tab key when you see the boot menu and adding "nopcmcia" or "nohotplug" at the end of line. You will find more information there.

Have a look on Slax forum since ophcrack LiveCD is based on Slax.

On some machines, ophcrack does not start automatically when the graphical interface is started. Click on the right button and select xterm. Enter "cd /root" and then "./launch.sh". If it still does not work, enter "ophcrack" and use it manually.

You'll find them in /mnt/live/mnt/hdX/ophcrack/tables where X corresponds to a,b,c,... depending on the system.

Yes. You can simply put whatever tables you want in the ophcrack/tables directory of the LiveCD. You can either change them in the ISO file before burning it or on the USB stick if you install ophcrack LiveCD on it.

It is really easy to make your USB stick bootable and run ophcrack LiveCD from it. Moreover, it's much faster to boot from USB than CD.

1. Download the latest ophcrack LiveCD iso.
2. Uncompress the iso file on an empty USB stick using a utility like 7-zip on Windows or by mounting it on a loop device and copying the files on Linux.
3. Execute bootinst.bat on Windows or bootinst.sh on Linux in the boot folder of the USB stick to make it bootable.
You're done.