Thanks for checking in Ed. My first thought was a virus but I’ve scanned multiple times and the system is clean. I’m able to open the first Cruzer drive on another machine with no problem but when I load it on my PC, it will show as a removable drive for about 15 seconds before it disappears from the File Explorer. Again this drive used to work fine until I plugged in the second Cruzer drive. That’s when the Firebird logo appeared and tried to install or update something on that drive. Now neither drive can be viewed on this machine.
I checked my event log during the time I plugged in the drives. I got the following entries from my System log.
Error: 3/11/2014 10:15:22 PM
A driver package which uses user-mode driver framework version 2.0.0 is being installed on device SWD\WPDBUSENUM_??_USBSTOR#DISK&VEN_SANDISK&PROD_CRUZER_GLIDE&REV_1.26#4C532000040817109081&0#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}.
Error: 3/11/2014 10:15:23 PM
The UMDF service WpdFs (CLSID {112de495-ac4c-46f8-b663-6a4266c53313}) was upgraded. It requires framework version 2.0.0 or higher.
Error: 3/11/2014 10:15:23 PM
The driver package installation has succeeded.
Error: 3/11/2014 10:15:23 PM
Driver Management has concluded the process to add Service WUDFWpdFs for Device Instance ID SWD\WPDBUSENUM_??_USBSTOR#DISK&VEN_SANDISK&PROD_CRUZER_GLIDE&REV_1.26#4C532000040817109081&0#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B} with the following status: 0.
At 3/11/2014 10:15:41 PM I had 7 of these Warning messages in the log file
An error was detected on device \Device\Harddisk1\DR5 during a paging operation.
with one of these in the middle of those messages
The IO operation at logical block address 1 for Disk \Device\0000095a (PDO name: ) was retried.
Error: 3/11/2014 10:16:24 PM
A problem has occurred with one or more user-mode drivers and the hosting process has been terminated. This may temporarily interrupt your ability to access the devices.
From those logs it would appear that when the second Cruzer drive was inserted it attempted to update itself and something didn’t work correctly from then on. Hopefully this helps.
Edit: There are a number of files from here on regarding these two drives. If you’d like I can send a copy of the log file so you can review it. That info above is for the first drive I inserted. After the second drive (which has similar log entries) there are some about a WPD-ClassInstaller referring to autoplay registration and layer bits %2 being requested but layer bits 3% were registered.
Darren