I downloaded the whole UBCD4Win file, and installed it on my computer. During the isntallation I got a report to the effect that the hash was ok but there was a problem with the integrity of the file system.

Sorry, I didn't write down what the error message said. And I haven't the slightest idea where to go to get it back,

Meanwhile when I look at the folder in Windows Explorer, there simply is no UBCD4WinBuilder.exe file there.

I remembered seeing something about looking at it in Safe Mode so I tried that but it still wasn't there.

Where do I go from here?

Remove the first UBCD4Win folder... then re-install in Safe Mode... this time if there are any errors pay attention to them since the exact error would help you resolve the issue. The most likely cause of the issue is your antivirus or other protection program having a false detection... if so read the FAQ concerning that for more info.

OK - I did what you said and it apparently worked - at least it burned a disc that has what it's supposed to have on it, when looked at in Internet Explorer.

I haven't tried it out yet as I'm not sure how I will use it, but with Windows crashing to the point it can't even be rebooted into Safe Mode every time I reboot to install a download, I'm pretty sure I'll find out pretty fast.

Thank you very much.