Quote: Originally Posted by Ex_Brit
Perhaps turn off AutoPlay? Look that up in Start/Help & Support. Windows can't read that drive, that's why it's querying it every time but it may stop if Autoplay turned off, can't guarantee that though.
I've tinkered with AutoPlay and other things (such as app's,) but found that the #1 factor that causes the disappearance/reappearence of drives (or, moreover, causing the "Drive L:\ must be formatted before you can use it. Do you want to format drive L:\ now?" error is the location the drive or flash (or whatever the media) is inserted into on the USB Mass Storage Device.
I use a simple, no-frills, Kensington Docking Station (sd120 with Ethernet,) with a mere 4 USB 2.0 ports on the back, and, when I rarely move my external hard drives around, without fail, I get that problem.
After reading an article (wish I could locate it,) where an old timer who knew his hardware fundamentals swore up & down USB isn't as "plug & play" as we like to think stated as such... I took notice and started to believe what he said.
Try hooking up what you need to, or where it last worked best, if you could, disable TrueCrypt (it's been a while... disable it as a Startup Entry if it is one ((?)),) and shut down.
Restart to force hardware detection.
Leave it all as it is.
Should it cause errors, run an elevated CMD and use the "sfc /scannow" command to verify integrity violations or lack thereof.
Reset policies if necessary.
Still leaving hardware as is, power-down (making sure all USB M-F connections stay put, but power is off,) and let it cool... then power back up.
Eventually, it'll whittle itself down and hopefully solve the problem; then you can go back to TrueCrypt. I hope this helps. I go through this error from time to time and it's a PAIN.