id summary reporter owner description type status component version resolution keywords cc guest host 4313 Host Memory Low error Torben Nehmer "I recently upgraded to VB 2.2.4 and since then I cannot use any(!) VM anymore. I am using a 6 GB Quadcore System, which normally has 2 GB of RAM available. Even a VM set to 1 GB RAM does sometimes not even start. Right now, the VMs do start to a Windows login, but then freeze: 00:00:34.704 Console: VM runtime error: fatal=false, errorID=HostMemoryLow message=""Unable to allocate and lock memory. The virtual machine will be paused. Please close applications to free up memory or close the VM"" When I cannot start the system directly throws a memory related error as well: 00:00:00.620 ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={9511bc54-15ee-4ddf-808e-472aba03809c} aComponent={Console} aText={Unknown error creating VM (VERR_NO_MEMORY)} aWarning=false, preserve=false 00:00:00.627 Power up failed (vrc=VERR_NO_MEMORY, rc=E_FAIL (0X80004005)) I am quite sure, that I do have enough memory available. I even stopped the SQL Server (normally running at around 3 GB allocated RAM) to verify this. The task manager normally does not report more then 4 or 4.5 GB of used physical memory. Any hints would be appreciated. If you need any more information, please let me know." defect closed VMM VirtualBox 2.2.4 worksforme Windows Windows