I installed the new program yesterday, since then my computer has had issues. It won’t close down properly, and then won’t allow fingerprint reader password access on startup. If I start with password, it locks up, requiring hardboot. I then start in safe mode, and it will start and close. If I then go back to normal startup it will start using password (very slowly) however won’t close again.
I have uninstalled and that fixed all the problems, so I reinstalled - problems back again. I am currently uninstalled feeling nervous! Can I download the last build of the old program anywhere until this new one has the kinks worked out?
When an application, driver or whatever, tries to load the firewall by default will usually prevent it from accessing havine network (LAN or Internet) access unless you tell the firewall it is a Trusted application.
When it does so, sometimes it causes the application, driver or whatever to have an error. Usually the application will “crash”. As I understand it, there are three mechanisms in the Commodo that might make this happen. They are the Firewall, Defense+ and Sandbox.
Here is an explanation of what Defense+ and Sandbox do:
"The Defense+ component of Comodo Internet Security (hereafter known simply as Defense+) is a host intrusion prevention system that constantly monitors the activities of all executable files on your PC. With Defense+ activated, the user is warned EVERY time an unknown application executable (.exe, .dll, .sys, .bat etc) attempts to run. The only executables that are allowed to run are the ones you give permission to.
Comodo Internet Security’s new sandbox is an isolated operating environment for unknown and untrusted applications. Running an application in the sandbox means that it cannot make permanent changes to other processes, programs or data on your ‘real’ system. Comodo have integrated sandboxing technology directly into the security architecture of Comodo Internet Security to complement and strengthen the Firewall, Defense+ and Antivirus modules.
The smart application control mechanism performs security inspections whenever you start an application and automatically sandboxes unknown applications so that they can NOT do any harm to your system.
Applications in the sandbox are executed under a carefully selected set of privileges and write to a virtual file system and registry instead of the real system. This delivers the smoothest user experience possible by allowing unknown applications to run and operate as they normally would while denying them the potential to cause lasting damage.
After an unknown application has been placed in the sandbox, CIS also automatically queues it for submission to Comodo Cloud Scanners for automatic behavior analysis. Firstly, the files undergo another anti-virus scan on our servers. If the scan discovers the file to be malicious, then it is designated as malware, the result is sent back to the local installation of CIS and the local black-list is updated. If the scan does not detect that the file is malicious then its behavior will be monitored by running it in a virtual environment within Comodo’s Instant Malware Analysis (CIMA) servers and all its activities are recorded. If these behaviors are found to be malicious then the signature of the executable is automatically added to the antivirus black list. If no malicious behavior is recorded then the file is placed into ‘Unrecognized Files’ (for execution within the sandbox) and will be submitted to our technicians for further checks. The cloud scanning processes takes around 15 minutes to complete and report their results back to CIS.
Defense+ also protects against data theft, computer crashes and system damage by preventing most types of buffer overflow attacks. This type of attack occurs when a malicious program or script deliberately sends more data to its memory buffer than that the buffer can handle. It is at this point that a successful attack can create a back door to the system through which a hacker can gain access. The goal of most attacks is to install malware onto the compromised PC whereby the hacker can reformat the hard drive, steal sensitive user information, or even install programs that transform the machine into a Zombie PC. For more details refer Execution Control Settings."
Having quoted all that, basically I think your fingerprint reader application is being isolated (preventing from loading completely) and locking up the system.
Here are your choices, as I see them:
Make the application a Trusted file in Defense+ and or Sandbox. Onces trusted you won’t be nagged again to give the app access.
Disable both Defense+ and Sandbox and rely on the firewall to prompt you too allow apps access to the Internet. This can be risky but, can also prevent the problem you are having. The question is, are you willing to rely on your firewall, anti-virus and other third party spyware such as “Spybot Search and Destroy” and “Spyware Blaster” to keep you safe?