It is the only solution Faronics has for those who need to remove Deep Freeze without the password. If you want to re-install Deep Freeze, you'll have to first delete the special driver too. ![]() And after that, you need to use a Deep Freeze installation file to fully uninstall Deep Freeze (it will be thawed when you boot up with the special driver). But, even if you do have it, you will still have to boot separately from the hard drive and replace the existing Deep Freeze driver with the special one and reboot. ![]() Will they send it to you, or even admit to you that they have it? I don't know. They do not have any backdoor passwords, so they use a special driver to remove a Deep Freeze installation where the password is not known or that someone is having trouble with. Now here is a little known secret: Faronics (the makers of Deep Freeze) uses a special driver to remove broken or malicious Deep Freeze installations. Then you'll be able to boot from CD or USB and edit your computer's registry and remove the DeepFrz, DepFrzLo, and DepFrzHi references which start Deep Freeze. Use CmosPwd to remove the BIOS password and reset the default BIOS settings. But it works, even on Deep Freeze protected computers. Yes, it uses a driver to remove the BIOS password. You'll need to know how to use a command line and install the driver. QUESTION: What if the BIOS settings prevent me from booting from CD or USB? Answer: Deep Freeze prevents you from decrypting the BIOS password, but it does not prevent removing it, if you have the right tool! Most of the BIOS hacking programs will not work to remove the BIOS password on a Deep Freeze protected computer, but CmosPwd by Christophe Grenier does: Now reboot and Deep Freeze will not load. Also, if you decided to get rid of the ThawSpace delete the key with the name of the ThawSpace driver (ThwSpace).ħ. Now go to HKLM\MySystem\ControlSet001\Services and delete the keys with the name of the Deep Freeze drivers (DeepFrz or DepFrzLo and DepFrzHi). We'll assume the control set is ControlSet001 but you should use the one specified by the value Default.Ħ. If it is 1 the control set is ControlSet001, if it is 2 the control set is ControlSet002, and so on. It has the number of the control set key that the system will use when booted. Navigate to HKLM\MySystem\Select and check the value with the name Default. Press F3 to find the next match and repeat the operation until you have fixed all the UpperFilters values inside the HKLM\MySystem key.ĥ. Also, if you are using ThawSpace and you want to get rid of it delete that line too (ThwSpace), if you want to keep the ThawSpace leave it there. Open this value and if there's a line with the name of the Deep Freeze driver (DeepFrz or DepFrzLo) delete it including the return, leaving the rest of the lines intact. The program will find a value with the name UpperFilters. On the Find dialog box type UpperFilters and check only the Values checkbox. If it's not thawed follow one of the alternatives described above, and run Regedit (or Regedt32 on Windows 2K).ģ. The goal here is to boot separately from your hard drive and access it while it is "asleep".Ģ. There are several, including some USB memory sticks capable of booting like a CD. Or use Bart's, or Winternals ERD Commander. A good example of this is PE Builder that lets you build a Windows PE CD and boot Windows from there. You will probably use a tool that lets you boot and edit the registry. Or, you can physically mount the disk on another computer that uses Windows 2K/XP. ![]() If you have a multiboot computer with another copy of Windows 2K/XP you can boot from there. If your computer is frozen or if it doesn't boot you'll need to find another way. If your computer is thawed you can simply use Regedit. The way to do this depends on your situation. First we need a way to edit the registry. (c:\windows\system32\drivers\deepfrz.sys)ġ. This will prevent the Deep Freeze driver from starting up the next time you boot. What we are going to do is edit the registry and delete the startup references to Deep Freeze. Note: Without a complete uninstallation you may not be able to reinstall Deep Freeze on your system. How to Uninstall Deep Freeze for Windows 2000/XP/Vista without the password.
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