Windows 8.1 crashes ?

[s1lenc3]

I'm running a Windows 8.1 Pro x64 guest on Windows 7 Ultimate x64 host. Guest constantly crashes when I start it and start doing something. First it freezes and then restarts after few seconds. After the guest windows reboots it gives me a message that says an error occurred and it had to restart, therefore, I'm wondering is it the ram amount I've set for the guest (which is 1280MB) or some certain windows problem that is not related to the virtual box ? I've been using 8.1 guest before, yet I've updated my hdd to ssd and I had to re-install my host windows. After that I installed 8.1 via virtual box again and it started crashing. The thing is that before re-installation of host, it was using 2GB of ram (but the host system was laggy, since I've got only 4GB total). The question is should I give more memory (since I'm not sure if 1280MB is enough for x64 system) for the guest or should i search for another setup and re-install it ?

[mpack]

Hard to comment without a VM log file. Minimum information needed for assistance.

[s1lenc3]

There you go. Sorry for the inconveniences.

[mpack]

4.2.24 has problems on Windows hosts. I suggest that you upgrade to 4.3.12 (not 4.3.14, which has the same problems). Don't go backwards, since I'm not certain which rev added support for Windows 8.1.

As to the RAM: you are allocating a uncomfortably large chunk of RAM to this guest, given the amount available on your host. However reducing it is problematic since you've chosen a notoriously resource hungry guest. I would simply do my best to shut down unnecessary apps on my host before running such a guest. Also the amount you have allocated as VRAM is unnecessarily large, you can certainly reduce this by half.

If you don't need 3D acceleration then I'd turn it off. That usually improves stability too.

p.s. I only needed one log file, so I've deleted the two redundant ones.

[s1lenc3]

4.2.24 has problems on Windows hosts. I suggest that you upgrade to 4.3.12 (not 4.3.14, which has the same problems). Don't go backwards, since I'm not certain which rev added support for Windows 8.1.

As to the RAM: you are allocating a uncomfortably large chunk of RAM to this guest, given the amount available on your host. However reducing it is problematic since you've chosen a notoriously resource hungry guest. I would simply do my best to shut down unnecessary apps on my host before running such a guest. Also the amount you have allocated as VRAM is unnecessarily large, you can certainly reduce this by half.

If you don't need 3D acceleration then I'd turn it off. That usually improves stability too.

p.s. I only needed one log file, so I've deleted the two redundant ones.

Just to make sure... you're telling me that 1280MB of ram for Windows 8.1 guest is too much ? Host still has 2.8GB left, thus, it shouldn't be too much imo. Well, I've reduced the VRAM, updated VB and will bring you the latest.

[mpack]

I'm telling you what your log tells me: that 1280MB+128MB is uncomfortably close to 1943MB. That's almost 75% when the ideal is no more than 50%.

[s1lenc3]

I'm telling you what your log tells me: that 1280MB+128MB is uncomfortably close to 1943MB. That's almost 75% when the ideal is no more than 50%.

Im not sure, that you've fully understood me. I've got 4GB ram in total.

[mpack]

The figure that matters is how much RAM you have available, not what you have installed (in total). If it's already in use by the host OS or other apps then it isn't available. You can check the numbers in the log for yourself.