I have Vista Home Premium on two year old PC that just recently got

Logon process has failed to create the security options. Dialog box with failure security option when waiting for the welcome screen to appear.

    I read through postings on various sites and decided to do check disk.  This fixed the problem after I recently installed an HP wireless printer.  Also windows has been trying to update and gets hung on last step after leaving PC on all night.  I had to
shut PC with on/off and that may have had something to do with this issue appearing.

   Anyhow, if you can F10 and start in safe mode with command promt then

type CHKDSK C:/F    If message returned from this command states drive in use say Y to schedule at restart and then type command shutdown.   /F is to fix any problems found.

 

Ali

I'm new here and have been researching the same annoying problem as everyone else with Vista crashing and then not being able to reboot or shut down the unresponding program, without having the computer freeze up and get that dialog box.

So far, my main problems have been using IE7 and having certain websites lock up, crash, and not be able to shut down or restart using the Cnt/Alt/Del method.

I've tried all kinds of remedies, disk scan, hard drive check, system restore, repair mode, you name it.  I read some people talking about having problems with the security protections, so I started playing around with mine and found out that EVERY PROBLEM that I've had so far is related to the security on the computer!

I have XP on my other computer and have NEVER had a crash in 4 years!!  Everything has worked great and I've never had a problem working with anything!

Someone may have brought this up elsewhere, but I haven't actually found it.  It seems like anytime you want to install anything, you need to shut down ALL the virus protection and everything will load just fine!  If I leave it on, a lot of times the whole thing crashes and I have to manually restart.

The MAIN CULPRIT I found that was causing IE7 to lock up, was running the enabled protection mode.  As soon as I shut that off, none of the websites that were freezing up froze anymore, and I was also able to hit Cnt/Alt/Del and actually have the window pop up without a freeze.

I don't really think that function should have to be on if you've got all the other security running, which should cover viruses, spyware, etc.  I'm using Panda right now, by the way.

Leaving all the security on even affects some of the other programs not connected to the internet.  After I shut it all off, I wasn't getting errors in Paintshop Pro, like I was when it was turned on.

I hope this might help some other people, if you haven't found a solution yet!

Error has to be related to Adobe & Vista.   I sure could use some help here.

Did you see the post I wrote above?  Your crashes might be getting caused by the security on your computer.  If you haven't turned off your virus control and taken off the enabled protection in Explorer, try that and see if it will update without crashing. 

I've left my enabled protection off permanently, but I turn the virus control off when I'm trying to load something, and back on again when its finished.  So far it hasn't crashed since I've done this. 

I don't use the vista firewall - I use Zone Alarm.  For the past few days, I have been getting alerts telling me that various applications....that I didn't even know existed...are trying to connect to the 'net.  This has never happened before. 

This weekend, I am going to uninstall everything that I have recently installed, and go back to the last known "good" restore point, then shut down my Norton AV and try to reinstall my software.  I'll let you know on Monday how it goes.

I ran into the ""same kind" of problem after installing Windows Live OneCare. My brand new laptop started to freeze after running for about 30 minutes to an hour. Then when I try to Ctrl+Alt+Del, the screen goes dark. Then after a few moments, I get the infamous dialog. Dismissing the dialog only returns back to the frozen state where only the mouse will work. All previously running applications are frozen and I have to do a hard reboot. After rebooting, the PC will do the same thing again.

My problem came down to bad disk access, where accessing certain files on my secondary drive would cause the computer to freeze as described above. I found this out because started backing up my drives thinking that I will have to reinstall Vista, and the PC would freeze while trying to copy the same [bad] files. I know because I would reboot and the backup process would freeze at the same file, and there were more than one. Also, when the PC frozed, I can see the drive access light blinkning endlessly.

I completed my back up and reformatted my secondary drive, restored the good files and reinstalled OneCare. Everything seems to be working fine now. It seems that while OneCare is scanning files in the background, it would run into the bad files and the system would lock up. The same as it did if I tried to read the bad files while making my backup.

So, if your problem is like mine, you will see the disk access light flashing while the PC is frozen, or in another poster's case, you will have drive head thrashing, or worse....

Another observation. Before installig OneCare, I was never able to completely do a defragmentation of the secondary drive. Assuming it is because of the bad files. The defragmentation process would freeze after awhile and I had to cancel out of it. So there you go. I had some bad sectors or something and the OS was not able to return disk errors back to the running program. I didn't have a disk utility on hand to check for bad sectors, so I did it the brute force way.

Hope this helps you guys.

Chuong

After trying a few different things including a system restore the problem still existed. I also ran a sfc/scannow and it found no problems with my hard drive.

Two days ago I turned off windows defender, sidebar and Vistas UOC and the laptop has been problem free since then.