id summary reporter owner description type status component version resolution keywords cc guest host 3430 Disk Read Error Occurred using VHD => Fixed in SVN/next release Mark "Using an existing vhd from VPC 2007, created about 4 months ago. Base O/S is Windows Server 2008 and Virtual Instance is XP-SP3. Running VBox 2.1.4 VBox, installed with no errors and mounted XP VHD with no problems. VBox XP instance ran fine, connected fine, all good. Came back from lunch yesterday to find xp instance, black screened with ""disk read error occurred"" message. Only responds to 'Turn Off' No reboot or shutdown had occurred to the host, just screen saver. VPC was able to open the vhd and boot but would hang on reactivate windows due to hardware changes. Restore backup of VHD, all running fine again unber Vbox and VPC (not at the same time) Start up VBox this morning XP instance runs fine. Go for coffee, come back and XP instance under VBox is black screened with ""Disk Read Error has Occurred"" message on screen. No host shutdown or restart, screen saver did kick on. XP Instance under VBox only responds to 'turn off'. Restore VHD image again and works under vpc and VBox. Try and reproduce by letting screen saver kick on, but VBox instance is still okay. Once ""Disk read error has occured"" message comes up, XP instance running under VBox is not bootable and continually shows ""disk read error occurred"" message. " defect closed virtual disk VirtualBox 2.1.4 fixed Windows Windows