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You are committing RAM to the guest that your host doesn't have. Does your guest really need 8GB? I would cut that to 4 or even 2GB.VBox.log wrote: 00:00:01.102208 Host RAM: 16272MB total, 7564MB available
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00:00:01.510404 RamSize <integer> = 0x0000000200000000 (8 589 934 592, 8 GB)
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00:00:01.510728 VRamSize <integer> = 0x0000000010000000 (268 435 456, 256 MB)
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00:00:21.149622 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"