Sandbox & Hyper-V have been working fine until the last time I tried to use it. I noticed it stopped loading webpages from Edge or would take minutes to load a single page. Same thing happens if I install FF or Chrome within Sandbox or on a VM. Attached image would be the reason why. However I can't figure out how to fix it. I've removed it, rebooted, re-installed it, rebooted. Nothing. Something is destroying it's ability to receive.
Windows 11
10Gb NIC
1Gb NIC disabled
I have Bluestacks installed and out of curiosity I ran speedtest on there as well. It's full speed.
At first I thought the root problem was the "Default Switch" that is created automatically. Unfortunately the internet isn't much help as everyone suggests to ditch that switch and create your own External Switch. Great for VMs but that's not an option for Sandbox. You can't even edit that Default Switch, it's locked in, everything greyed out.
Any help to diagnose this would be greatly appreciated!
EDIT:
More info. I disabled my 10Gb adapter then enabled my 1Gb adapter. Relaunched sandbox and full speed! What the heck? Why full speed on one adapter and not the other? Installed a new Win10 VM using Hyper-V and it as well was full speed. Went back to the 10Gb adapter and right back to 3Mbps download for both Sandbox and Hyper-V.
Uninstalled everything. Disabled the 1Gb adapter in BIOS. Reinstalled only Sandbox. Right back to 3Mbps download. Installed everything else. Loaded the VM and it was also right back to 3Mbps.
No driver update for the 10Gb adapter. Anyone else run into this issue?
EDIT2:
iperf3
Sandbox -> Host - 14.8Gbps
Host -> Sandbox - 3.2Gbps
I just get more and more confused. Why isn't it 14.8 both directions and if it can handle 3.2Gbps when why is the download from the internet so horrible?
FAQs
How to Fix the “Windows Sandbox Failed to Initialize/Start” Issue
- Fix 1: Re-Enable the Windows Sandbox Tool.
- Fix 2: Start Sandbox Services.
- Fix 3: Restart Hyper V and Other Programs.
- Fix 4: Try the Troubleshooter.
- Fix 5: Run SFC.
- Fix 6: Restore Windows to the Previous State.
- Fix 7: Check for Updates.
- Final Words.
How to disable Hyper-V
- In Control Panel, select Programs and Features.
- Select Turn Windows features on or off.
- Expand Hyper-V, expand Hyper-V Platform, and then clear the Hyper-V Hypervisor check box.
Depending on the virus some might also use VM detection specifically and stop running to avoid further analysis. Breaking out of a VM is a targeted attack unless VM usage becomes more common for the average user.
Is Hyper-V needed for Windows Sandbox? ›
The Windows Sandbox does require the underlying base of Hyper-V, whose feature is called "Virtual Machine Platform", but does not require the heavier upper part of Hyper-V, whose feature is called "Windows Hypervisor Platform".
How do you reset Microsoft sandbox? ›
From the left-side menu, select Environments, and then select an environment to reset. Select Reset from the top menu bar. The sandbox environment will be deleted and reset to factory settings. You will not be able to recover any data that was previously in the environment.
What happens if you disable Hyper-V? ›
Besides its performance impact on other hypervisors, many users report increased performance in games and emulators after disabling Hyper-V. So, if you're not planning to run heavy-duty workloads on your VMs, it might be a good idea to disable Hyper-V and switch to VirtualBox or VMWare Workstation.
How to get out of Windows sandbox? ›
When you're finished experimenting, close the sandbox. A dialog box will state that all sandbox content will be discarded and permanently deleted. Select Ok. Confirm that your host machine doesn't exhibit any of the modifications that you made in Windows Sandbox.
Is sandbox a virus? ›
A sandbox is a system for malware detection that runs a suspicious object in a virtual machine (VM) with a fully-featured OS and detects the object's malicious activity by analyzing its behavior.
Does Windows sandbox have network access? ›
Networking. Enables or disables networking in the sandbox. You can disable network access to decrease the attack surface exposed by the sandbox.
Can viruses escape Hyper-V? ›
Yes, malware can break out of a VM by either attacking deficiencies in the virtualization environment (hardware or software), or because the VM has access to other systems on the local network or host that a separate host would not have.
Reasons to use virtualization
Hyper-V makes it very easy to create and remove different operating systems. Test software on multiple operating systems using multiple virtual machines. With Hyper-V, you can run them all on a single desktop or laptop computer.
How do I disable Windows sandbox? ›
Disabling Windows Sandbox and Virtual PC
- Click on the Windows Start button.
- Search for "Features"
- Select "Turn Windows features on or off"
- Uncheck Virtual Machine Platform.
- Uncheck Windows Sandbox.
- It will then prompt you to restart your PC.
Windows Sandbox (WSB) provides a lightweight desktop environment to safely run applications in isolation from the host OS. Think of it as your digital playground – a safe, isolated environment where you can test and debug apps, explore unknown files, or experiment with tools without risking your host OS.
How do I disable sandbox in Windows? ›
Disabling Windows Sandbox and Virtual PC
- Click on the Windows Start button.
- Search for "Features"
- Select "Turn Windows features on or off"
- Uncheck Virtual Machine Platform.
- Uncheck Windows Sandbox.
- It will then prompt you to restart your PC.
To close the sandbox, simply issue the 'Exit' command in the CLI portal, which you'll find adjacent to the 'Activate Sandbox' option, and then exit the sandbox by clicking on Quit option from the popup.
How to reinstall Windows sandbox? ›
Use the search bar on the task bar and type Turn Windows Features on or off to access the Windows Optional Features tool. Select Windows Sandbox and then OK. Restart the computer if you're prompted. If the Windows Sandbox option is unavailable, your computer doesn't meet the requirements to run Windows Sandbox.
