Intermittent Long Boot Times

Discussions about using Windows guests in VirtualBox.
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Diceclip
Posts: 1
Joined: 28. Oct 2017, 18:30

Intermittent Long Boot Times

Post by Diceclip »

I run 5 Windows 7 Virtual Machines, Intermittently some of them will hang at the BIOS Screen for anywhere from 30 seconds to a few minutes before continuing onto the windows splash screen to continue booting. I've recently migrated the VM's to an SSD and the problem has persisted. Their is no pattern on which of the 5 will hang, it just seems to be completely random.

Any suggestions?
socratis
Site Moderator
Posts: 27330
Joined: 22. Oct 2010, 11:03
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5
Location: Greece

Re: Intermittent Long Boot Times

Post by socratis »

Remember that simple rule:
  • Total CPUs for your guests Host CPUs + 1.
  • Total RAM+vRAM+overhead for your guests Host available RAM + some.
For a VM that's hanging: let it boot completely, log on, and then shut it down completely (not paused or saved). Right-click on the VM in the VirtualBox Manager and select "Show Log". Save only the first "VBox.log", ZIP it and attach it to your response (see the "Upload attachment" tab below the reply form).
Do NOT send me Personal Messages (PMs) for troubleshooting, they are simply deleted.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
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