Windows 7 x64 guest works very slow

[DMax2015]

Hello everyone! I have a problem with Win 7 x64 - it works very slow. Maybe you can advice something?

Here's info:

VirutalBox v5.0 with installed Additions.
Guest:
OS: Windows 7 x64 Professional
Ram: 4 GB
VRam: 64 MB
CPUs: 4
VT-x, Nested Paging, Hyper-V

Host: Windows 7 x64 Ultimate
Ram: 8 GB
CPU: Intel Core i5-4570 3.2 GHz
Video: NVIDIA GeForce GT 630

What settings are wrong? Thanks in advance!

[noteirak]

Please read Minimum information needed for assistance and provide zipped attachment of the VM log file and the guest settings.

[DMax2015]

Ok, here's the log.
Also there's one more strange thing: after installing updates to guest via Windows Update, I can't load it after reboot. I see Windows Starting screen about 15-30 seconds and then VM shuts down itself. I've attached log for it too.
I'm able to run Windows normally only after running Startup Recovery and rebooting VM during the recovery process.

UPD: Added machine settings.

Logs.zip

(97.67 KiB) Downloaded 5 times

[jprrezende]

Did you try to enable 2D and 3D video acceleration?

You could do it in the VM Setting > Display and then in the Screen Tab.

João Paulo

[mpack]

One issue per topic please.

As always with queries of this type, it should only take a moment to look at the task manager in the guest and perhaps also the host, to see where all the CPU or I/O bandwidth is going.

In a new Windows installation this is usually Windows Update or the disk indexing service doing its first boot stuff.

Assigning to the guest all four of your hosts CPU cores is not going to help host performance either, and the guest does of course depend on the host for all I/O.

[jprrezende]

I had the same problem once. My Windows 7 was so slowly.
I just increase the video memory to at least 64MB and enabled 2D and 3D video acceleration, and it worked.

Att,