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Unanswered Questions

6,835 questions with no upvoted or accepted answers
9 votes
1 answer
4k views

Is Xfce supposed to run slowly on Virtualbox?

I'm having problems getting Xfce systems on VirtualBox to run smoothly. What I mean by slow is that moving or resizing windows looks very "laggy" (basically just windows jumping from one ...
9 votes
4 answers
16k views

Three finger swipe to change between windows

I'm using Synaptics PS/2 Port TouchPad. I want to be able to switch between open windows (like Alt+Tab) by swiping three fingers left and right. I've been searching the deepest depths of the internet ...
8 votes
0 answers
1k views

Running Android Emulator with HAXM acceleration and VirtualBox in parallel on Windows

I am trying to understand if it is feasible to run the Android Emulator with HAXM-based acceleration and VirtualBox side by side on the same Windows host. I have a Windows host running a 64 bit ...
8 votes
5 answers
30k views

Change Windows explorer font size

I'd like to increase the font size in Windows Explorer. By default it's very small, and I don't really like that for navigating folders and finding files. Here's what it looks like by default: When ...
8 votes
1 answer
2k views

How to run a raw-disk Virtualbox VM when using UEFI?

I have a dual-boot setup on my computer with Windows 10 and Linux (Arch, if relevant). I'm trying to virtualize my on-disk Linux install in Windows (and plan on doing the opposite direction once I ...
8 votes
1 answer
5k views

Windows 8.1 Does not Detect Bluetooth Headset

I have the Motorola S11 Flex HD wireless Bluetooth headset which I have had connected to a Windows 8.1 Pro x64 machine with an Intel Dual Band Wireless-AC 7260 + Bluetooth for Desktop card. This ...
8 votes
2 answers
9k views

Windows 8.1 not activating screen saver, turning off monitor, or sleep mode

Any ideas on what would cause this? No applications that I actively run should be preventing this from happening: OneDrive, Steam, WhatPulse, puush, and f.lux. I have power options set to activate ...
8 votes
0 answers
1k views

VBoxManage: error: Cannot read the partition information from '/dev/disk0'

I'm trying to make a partition .vmdk file for Virtual Box. Basically I want to boot my bootcamp partition box up in Virtual Box. But I get the following error when I try to make the .vmdk file ...
8 votes
1 answer
36k views

Pass VirtualBox Guest connections through proxy

The computer is inside a company and only have internet access through proxy. I want the guest inside the VirtualBox to access the internet without changing anything in the guest. The host is Windows ...
8 votes
1 answer
6k views

How can I log into Windows 8 (Microsoft account) whilst offline?

From what I've read, Windows should cache the last used password and I should be able to login even when offline, but this isn't the case -- using my Microsoft password is prompting me to use my last ...
7 votes
0 answers
18k views

How to overcome VirtualBox 256MB limit of video memory

My host machine has a 2GB graphic card (GeForce GT740M) but VirtualBox allows me to use just 256MB of memory. Because I would use CAD applications on Win7 (Guest) I would like to have more memory to ...
7 votes
0 answers
1k views

Is there a way of scripting the "Roll Back Driver" feature of Window's Device Manager?

I need to roll back my graphic cards drivers once in a while(It's a long story.) and I have tried scripts using devmanview which worked great for disabling and enabling my drivers(and uninstalling it) ...
7 votes
1 answer
11k views

"Working on features // 100% complete" stuck, can't reboot

I booted my Windows 8.1 machine up as normal this afternoon, after having shut it down normally the night before. While booting up it got stuck with the following message over a blank screen of my ...
7 votes
1 answer
4k views

How can I make the mouse cursor render with software instead of hardware?

I use a program called f.lux to change the display color. However, the color does not affect the mouse: leaving it an ugly bright white. A partial fix is to set the registry value of mouse trails to -...
7 votes
0 answers
3k views

Make Genymotion use a host VPN

I'm using Cisco's AnyConnect to connect to a VPN using my Windows 8.1 PC. When using the Genymotion emulator, I would like it to use the VPN too. However, although having Internet access from the ...
7 votes
1 answer
5k views

"Your PC Needs To Restart" error on VMware Player 5 when installing Windows 8

I'm trying to install the latest Windows 8 preview on VMware Player 5, after trying build 8200 for a while. Immediately after booting, it gives me the following error: Your PC Needs To Restart. ...
6 votes
0 answers
5k views

rcu_sched detected stalls on CPUs/tasks

I'm running many VMs using Virtualbox. These VMs use Debian 10.3 (the latest version). And I'm experiencing bugs / freezes as you can see below. It looks like this is happening on the VMs where I ...
6 votes
3 answers
9k views

Vagrant hangs on SSH auth method: password

I’m trying to load a VM via Vagrant. It’s my first time attempting anything like this. I'm using Windows 10 64bit and trying to run my MS Server 2016 standard. I created a new VM in VirtualBox and ...
6 votes
0 answers
831 views

VBoxManage setextradata command does not add avx2 to /proc/cpuinfo

Linux & VirtualBox noob here, so please go easy. I've been running into problems compiling code with scipy in a VirtualBox 5.2 VM running Fedora 26 on my host Windows 10. The cryptic error output ...
6 votes
0 answers
3k views

Virtualbox host io cache applying scenarios

Virtualbox docs says that using host io cache for sata controller may be a risk of system performance. At the same time, on my case I see advantage of using host io cache - DisckCrystalMark reports ...
6 votes
1 answer
9k views

Windows detecting mystery device

I have just installed Windows 8.1 and I have noticed a mystery device being detected under Networks. Here is a screenshot showing the device and its properties. It identifies itself as a Nexus 7 - a ...
6 votes
1 answer
8k views

Accessing Localhost from Hyper-V VM

I currently have a PC running Visual Studio/IIS Express and I need to do some IE8 testing, which requires me to run a Hyper-V VM. When I go into the Hyper-V VM, I can't seem to go to reach http://...
6 votes
1 answer
8k views

How to forget/remove username in Windows 8 Store - account deleted

I deleted a Windows Live/Microsoft account (I have others) that I was using for the Windows Store on one of my PCs. Now I can't use the store at all because it wants a password for that particular ...
6 votes
0 answers
14k views

Easy way to recover Windows.old folder after Windows 8 PC Refresh?

I recently did a Windows 8 PC refresh, hoping it would solve an issue I'm having, which it didn't. Now I'm hoping there's an easy solution for undoing the refresh. Is there an easy way to recover any ...
6 votes
3 answers
6k views

How can I troubleshoot VirtualBox port forwarding from Windows guest to Mac OS X host not working?

There is a plethora of questions about VirtualBox port forwarding problems but none with my specific details. Details of setup: I have a Windows 7 Professional 64bit install living in VirtualBox 4.1....
6 votes
3 answers
6k views

Mac OS X Server 10.6.6 "disables" CPU in VMware Fusion

I installed Mac OS X Server 10.6.0 in VMWare Fusion the other night and it worked perfectly, until I ran Software Update. I upgraded to 10.6.6 through the combo updater, and now when I start the VM it ...
6 votes
2 answers
5k views

How can I mix and map sound channels in Windows?

The built-in windows mixer, which can be accessed through Volume Control, allows users to change the output volumes of individual applications. I would like something similar but with additional ...
5 votes
2 answers
8k views

Ubuntu VM hangs in VirtualBox under Window 10: "watchdog BUG: soft lockup - CPU#0 stuck for 23s"

This is Windows 10 with VirtualBox installed and Ubuntu virtual machine with Apache server. Often CPU hangs on the Ubuntu virtual machine, taking up to 50% host CPU usage with no response at all, when ...
5 votes
0 answers
2k views

Qemu throws back error after i tried to use whpx acceleration (not sure if this the right community)

I am using qemu to emulate Zorin OS 16 (a hour old user of qemu) I tried to emulate Zorin OS 16 with whpx acceleration with this command in power shell: qemu-system-x86_64.exe -boot d -cdrom zorincore....
5 votes
0 answers
1k views

Installing Windows virtualization features within KVM virtual machine causes early-boot guest crash

See updates below for what I've discovered about the more general nature of this problem. I have a Windows VM running OVMF firmware with VFIO passthrough for a graphics card running on an Arch Linux ...

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