I am using Norton AntiVirus 2011, version 18.1.0.37, fully updated. My OS is Win7 64bit.
Yesterday I found my C drive completely full, and consequently the computer was basically unusable. I rebooted, no change. I then did the first obvious thing, a disk cleanup. No good. I used a program that graphically maps out where your drive space is being used (I had to run it from drive E), and discovered that Norton was the culprit.
All the free space on my drive (about 70 Gig) was taken up by files in the following folder:
C:\ProgramData\Norton\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NAV_18.1.0.37\ErrorManagement\Queue\Staging\ccSvcHst.1820
The file names are all of the following format: {FFF426E0-F05D-40B0-8515-088077A3050F}.etl, with only the hex numbers changing in the file names. The files are all identical in size and almost identical in content. Looking at them with a hex editor, I found two (sort of) interesting things: they all contain the same two sections of ascii content, first is a reference to tzres.dll (with no path), and second is their own full path and file name. After that, starting at 0x2D8, the rest of the file is all ones (i.e. FF bytes in hex).
I also checked the Norton AV event history, but found nothing special or repetitive that corresponded in any way with the timestamps of the .etl files.
By turning off tamper protection and with a bit of effort, I was able to delete the files and reboot, in the hopes that the problem involved some error that rebooting would fix, but by this afternoon, the disk was full again, and NAV wouldn't show its UI until after a reboot.
Any help would be apprecitated.
Small edit, for completeness: I performed a full file system / surface scan of the drive and found no errors.