Hello all, New to the forum and hoping someone can help me pin down and solve this problem. I've got an HTC One M8 and a home built PC running Windows 7, 64 bit. I have two Seagate portable hard drives and a Western Digital MyBook portable hard drive that are all connected all the time as axillary storage / backup. When I connected my phone to my pc via a standard usb cable, it loaded the default driver package as you would expect. With the One M8, the device appears as a portable device and adds a virtual CD drive with the Sync Manager software. The default action for the virtual CD drive is to install Sync Manager, and in the right click context menu for the drive, the message 'HTC Sync Manager- USB Driver Update is Available' is in bold as the default action. Here's my problem; the auto-loaded software has hijacked the default action for one of my Seagate drives as well. Now when I double click the Seagate drive, it delivers an error prompt stating 'Application Not Found'. If I right click the drive and look at the context menu, it shows the same HTC Sync Manager - USB Driver Update is Available in bold as the default action. This is the only drive on my computer that has been hijacked by this botched driver install; neither of the other portable drives nor the SSD or other 3 physical drives operate any differently than normal (default action is open). I've gone into Device Manager and removed the drivers for both the virtual CD drive and the portable device HTC One M8, but the context menu/default action remains HTC Sync Manager message that returns application not found. I'm comfortable with registry edits, but I don't really know what to look for to restore normal function to my portable drive. If anyone could advise on what steps I should take to gather info that might help in this solution or point me in the right direction, I'd greatly appreciate it. HTC support says it's not their fault, Microsoft says it's not their fault...all very frustrating.