id summary reporter owner description type status component version resolution keywords cc guest host 11617 Windows Delayed Write Failed Thomas Astleitner "During my work, Windows XP as a guest comes with a yellow exclamation mark in the tray and a balloon tip saying: {{{ Windows – Delayed Write Failed: Windows was unable to save all the data for the file C:\$Mft. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere. Panically, I try to save some data, but can't access them at all. }}} After a reboot, I receive a blue screen saying: {{{SESSION3_INITIALIZATION_FAILED}}} The drive is not startable anymore. I had this before already since I guess 4.2.4 or so. Once the message came up, several data in the guest were unaccessible. I deleted the VDI file and restored a backup file, creating a new machine and mounted the VDI as master. A while it's always doing a good job, but after 1-2 weeks, problem's back. This time, I'll keep the VDI file for further investigation, if someone needs more info. Don't know if a bluescreen will help anyway. Now I'm going up to 4.2.10. I'll restore my backup VDI and try it again and again and again until that's fixed. Thanks! Tom" defect closed other VirtualBox 4.2.8 obsolete dataloss mft bluescreen Windows Windows