Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.

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Hi guys,

strange question maybe. Im trying to force a USN Rollback in my test lab to improve my troubleshooting and restore skills.

i tried to restore from a snapshot and also copied the VM, deleted it from Hyper-V and did a import after some time and changes in the AD (registered it with the same ID). But my AD will not crash... Netlogon service keeps on running, AD replication is working, the USNs are OK (checked with Repadmin /showutdvec * cn=configuration,dc=domain,dc=de)

Forest functional level ist 2012 R2, Windows 10 Client Hyper-V (Verison 1511)

any suggestions how i can force the usn rollback?
Hello guys,

I am not too familiar with VMware and new to this migration process. Basically I need to decommission a VMware host running ESXi Version 5 Build 469512. This server host 3 computers

1. Windows server 2008 secondary DC -   VMDK file
2. Windows 7 PC - used for backup software purposes  VMDK file
3. Windows 7 PC  - also used for backup software purposes  VMDK file

So I build the new hyper v server and build the first guest OS which will replace 1.  This is an upgrade on the OS so off course did not choose migration route.

Now my questions is instead of building 2 and 3 machines from start can I simply migrate them into Hyper v host ( server 2012 R2) some how ? If yes, how ?  ( VMDK to VHDX ) This will save me a lot of hassle and reconfigurations.  

If there is a way is there anything I need to watch out for ?

Thank you all!!

I had a battery backup fail on a Dell server running Windows 2012 R2 on Saturday.  When the power came back on and the servers came back up, I couldn't log into the physical server.  We're using Hyper-V with two VMs:  one called DC and the other FS.  Domain Controller and File Server.  I tried to restore the domain controller using the Windows Server backup and the FS was the only one showing up to restore in the backup.  So, I used the Files and Folders restore and I restored the DC.vhd as we were having problems with the Domain Controller.  After I was able to get back into the DC, I also could get back into the FS as well.  But there was something strange.  I had the domain trust relationship error on the workstations and I had to go back to workgroup and rejoin the domain for the four workstations.  I also had to use an old administrator password to get back into the server.  The backup I selected was from Friday the 17th of June.  I looked at the FS data and the latest file on there is from December 2015.  But I'm very confused.  I didn't touch the FS.vhd file when I was doing the file restore.  I have all their data backed up to the cloud as well and I may need to restore from there but do you have any idea what may have happened here?  Remember, I didn't touch the FS.vhd file.  I just tried to restore FS.vhd from Friday now just to see if I could see any of the data but still no data past December 2015.  Please help!  This is freaking me out!

This morning several or most of the users that connect to my  Windows Server 2012 lost their drive mappings.  The network shares aren't what I'm using to seeing or setting up.  I usually create a batch file called logon.bat and put the drive maps to the drive letters in there.  This isn't how this server was setup.  When you go to Windows Explorer, you see all the drive letters and their drive shares but it doesn't say, "\\servername\sharedfolder" next to the drive letter.  They almost look like local hard drives on the computer.  I hope I'm explaining this well enough.  How to do see these settings and reconnect them for the users?  Thanks for your help!
We're testing a new cluster connected to a SAN Equallogic PS 6110X.  I heard a lot of things about REFS.  But the volume is REFS.  Out test VM has 2 disks, of course the one running the OS is NTFS, but the one storing the data (huge amount of data) is REFS.

It's fast and robust so far.  We powered off nodes and even the cluster or / and VM several times to simulate all possible scenarios.  

So is it that bad using REFS on Windows 2012 R2?  I'm aware of the different version used in Windows 2016.  

We've destroyed our Hyper-V 2012 R2 cluster recently.  

A new cluster (not the same name) has been created.  It's running well.

But We got this message
Error      CLUSTER_HV3 : Configuration refresh failed with the following error: The metadata failed to be retrieved from the server, due to the following error: WinRM cannot process the request. The following error occurred while using Kerberos authentication: Cannot find the computer CLUSTER_HV3.domain.com. Verify that the computer exists on the network and that the name provided is spelled correctly.

CLUSTER_hv3 is the name of the previous cluster that has been destroyed.  

This object has been deleted from AD.  But for a reason or another Windows still try to find this cluster object.  

Thank you
Hi all

Is there such a thing as buying storage space for a virtual server?

I have a cloud based server which has hyper v install and one server

Ideally I just want a cloud server to run that virtual server without the host

Is there such a place?
I lost connection to a remote server and trying to see what happened.

I was setting and configuring this new server and started to play around with creating NIC team and v switch.

NIC ports on an intel add on card: 4
Onboard NIC Card: 2

Created NIC team 1: 1 onboard + 3 from Intel
Works great.

Now I wanted to assign a static IP to this new Hyper V server - 2012 R2 Std.

So I thought of doing some fault tolerance and created a second NIC team:
localserverNICTeam:  Onboard NIC1 + Intel NIC 1

Now I tried to assign a static IP addressing by doing following steps:
1. Created an External  vSwitch and selected the Multiplexer#2 for choosing the second nic team : localserverNICTeam
Checked the box that says - allow communication with management network.

2. Under control panels - network connections - RIght click on this vSwitch and assigned IP addressing as:
proper subnet and gateway and dns servers.

I lost connection but after sometime the remote server came up.

Now the issue is I can RDP to this server from other computers but I cannot ping it. What could be the issue here ?

I had a battery backup fail and my Windows Server 2012 R2 shut off.  I'm running Hyper-V with two VMs.  One is called FS and it's my File Server.  The second VM is called DC and it's the Domain Controller.  The physical server is up and both VMs are now running after the power outage.  But none of my workstations can connect to the server or use DNS.  I'm able to ping the server (all three, physical and two VMs).  If I try to connect to the DC, I get the message, "There are currently no logon servers available to service the logon request."  If I try to logon to the FS, I get the same message but I am able to logon locally using a different password for the administrator account.  My question is two-fold.  Is there a way to reset the local administrator password on the VM?  I have Boot Suite that I typically use to clear passwords on Windows 7 systems but I don't know if that would work and I don't know how I would boot to that ISO.  Even if I can get into the local administrator account, how can I get around this problem?  Thanks for any help with this!
I have an existing Windows 2008r2 Ent server configured for to run remote desktop services for 50 desktops.  It is still needed for that purpose but only for about 5 desktops now.  So I was thinking about adding a couple of virtual servers to it that require little resources so that I could use some of the now unused power of this server.  I know it would not be an ideal setup, but can I add hyper-v and maybe 2 virtual servers to this setup without much risk of damaging the RDS server that is still in production?  Was just hoping to setup a DNS server and maybe a intranet web site on it and retire some older equipment.  Thanks for any advice.
I have a few customers using hosted IMAP and would like to migrate their mailboxes to Exchange.
Saw a blurb about it in one of the trade rags and wanted to know if this is possible with Exchange 2010?

And if so ,any detailed how to?
The short story is I had to rebuild a virtual server using only the vhd files.  When the server came up, I assigned the IP address of the server to the NIC.  This is the same IP the virtual server had before the rebuild.

When I assign the static IP, it won't take it.  It comes up a 169 IP.  It WILL pull an IP from DHCP and work just fine, but it won't take the static IP that I need it to take.  We have several hundred iPads looking to that static IP.

Anyone seen this where the VNIC won't take the static IP?


I have a customer that has about 8 check scanners for different banks.  Right now the check scanners are connected to certain employee's computers.  The issue we are having is that when we tried to add multiple scanners to one computer, they conflict with each other.  The bank tech support states that we should only have one scanner per computer.   Is there a way we can centralize all check scanners in one location using Hyper-V?  Can we assign a particular USB port to a particular VM?  My first idea was to order 8 Lenovo Tiny computers with a KVM switch but would consider Hyper-V.  Any thoughts?
I have four hyper-v hosts.  I need to set up replication between hosts and I need to be able to move VMs from host to host.

It is my understanding that I can not do that on non-domain joined hosts, but it is also my wish to keep the hosts off-domain.  Recently, we had the hosts on the domain and a disgruntled employee with the admin password dropped ransom-ware on all four hosts.  Luckily we were backed up to high heaven and got back up soon enough, but now, I do not want the hosts on the domain.

One thought I have, and this is my question, is I thought I'd spin up a domain controller and create a domain for my hosts and join them to that domain.  That way all four hosts are on domain, but not on my primary domain.

What do you think of that?  Or, can you offer alternatives on how I can enable replication and moves between non domain joined hosts?


Good morning,

During the configuration of a Hyper-V host I had to uninstall my network adapter drivers and then reinstall. I then hade to manually remover the virual adapters:
remove-VMNetworkAdapter -ManagementOS -Name Cluster

Later when I am trying to recreate the VM adapters:
Add-VMNetworkAdapter -ManagementOS -SwitchName ConvergedNetSwitch -Name Cluster -Verbose

The system creates two adapters with the name Cluster. I am unable to complete my configuration because of this. Can anyone tell me how to fix this?

Have a Dell server with PERC H730P raid controller with sixteen 300gb 10k sas drives in it.

This will be my primary virtual machine host with Hyper-v server or server 2012 R2 with Hyper-v role.

How would you configure the disks for it:

1. Raid 10 with 16 disks, install OS and have a folder for the VM's
2. Raid 1 with 2 x 300gb for OS and Raid 10 with 14 disks for VM's
3. Something elsa. what?
Dear All,

I am facing a strange issue ,I have exchange 2013 environment where i have 3 mailbox server and 3 CAS server ,out of which one mailbox and CAS server is in DR,and 2 mailbox server and 2 CAS server is in the primary site all configured in DAG

the problematic server which i am referring to is one of the mailbox server in the primary site,i have found that whenever any database is activate on that mailbox server, i am not able open OWA and outlook shows disconnected for the users in that database ,i see the below error in OWA and i can see lot of event id logged in with 1310.

I've been provided with a VMware vSphere image of Suse Linux and I've used StarWind V2V to convert the VMDK to a VHD.

Upon booting within Hyper-V, I get a message

Volume Group "System" not found

The system is unbootable.

Does anyone know a fix?
Dear Experts

Please can someone assist me.

I need to install Starwind Tape Redirector on a server running Hyper-V Server 2012. I need a VM to connect to the physical tape drive.

Is there a guide somewhere?

Which options do I select...

installations options
i have to nodes in a cluster.
node 1 and node 2, they are used as a host to 10 VM's
node 1 has 8 VM's on it, and node 2 has 2 on it.

i looked at the physical memory used on both nodes , i thought it would be the same despite of the above.
one had 7GB available out of the 96GB, and the other had around 80GB availble of the 96GB.

my questions are as follows:

1- if there were really clustered, shouldn't the RAM looks the same on both nodes ?
2- isn't it better to move some VM's to node 2, so they will be balanced 5VM's on each.
3- how to move them ?
Dear All,

We have 2 file server running on windows server 2008 one in primary site and the other in DR site currently DFS and robo copy is being used to replicate the date between both the sites.

We are planning to migrate the windows server 2008 to windows server 2012 R2 and run the server in virtual environment with Hyper V, based on this i have couple of questions

1) i heard of hyper V replica through which i can replicate the entire VM to other site,by doing this can i stop using DFS and robo copy is this the best alternative to DFS and robo copy.

2) in case if the primary site is down can i start the VM in DR and just change the IP on DNS server and user can start accessing file server from DR server?

3) is there any option available in hyper V replica to monitor the replication?
New 2012 R2 Server just in for a client. It's purpose is to act as HyperV host for a 2012 R2 Server VM that will run SAS Analytical software (very demanding on resources - IOPS, RAM, drive space, etc.). See www.sas.com

HyperV host Server has 96 GB RAM and 7TB of Samsung Enterprise SSD storage. Using Storage Spaces.

Is there any advantage / disadvantage to virtualizing the storage drives for the SAS Server VM? Client has about 3TB of data.
Should I create virtual drives to hold the data? Or would it be better to leave the data on the HyperV host (non virtualized)?
Does it matter either way - if so, why?
Some time ago I converted a standalone  SQL 2008 R2 server to VHD and put on Hyper-V. It has been running fine. Space got low on data drive and I checked and noticed that one of my 3 virtual disks was missing, has a red x on it. The other 2 showed failed redundancy. I am not sure how to fix this on a VM. Would I be better off trying to export and import databases to another SQL 2008 instance?
I need to share files with about 10 users.
I want them to be able to access the files through a browser on public computers very similar to dropbox.
The problem i have with Dropbox is that the default web login page has the "Remember this password" box enabled by default and I know my users will forget to uncheck this before logging in.
(I have very familiar with key loggers etc on public computers but my situation is not such, they are controlled public computers so no conversation about this security please).

So I need a storage service that my users can login and access files on public computers but then needs to be auto disconnected in case they forget to logout.

I need about 200GB of storage.
Hi all,

We had ransomware infect the network from client computer, which spread to all network shares it had access to. The infection encrypted media, documents and database files on all 3 VM servers we have in our Hyper-V setup. We than paid for Decryptor to decrypt those files but not all files decrypted so we started a data recovery from backup.

We installed a new Synology NAS drive and attached this via iSCSI to both our Hyper-V hosts. A new VHDX was created from Hyper-V on the Synology which would house the restored data files. Straight away we started seeing NTFS corruptions shown in Event Viewer on the SBS 2011 (SP1) with Event ID: 55. We than removed the iSCSI connection to the second Hyper-V host as we read that this could be the cause and run chkdsk on the SBS 2011 which stopped the NTFS corruptions on the iSCSI drive.

We then restored files from before the corruption started back onto the VHDX created on the Synology NAS and overwrote any new files the client worked on since.

However, the NTFS corruptions came back and after some research, I found that VSS could be the cause so I've disabled the shadow copies (which deleted all previous versions) and I could see that the frequency of NTFS corruptions decreased by a noticeable amount (Event viewer logs was showing ID 55), however, they continued until I ran a new chkdsk with shadow copies disabled first and then re-ran chkdsk after re-enabling shadow copies. There don't seem to be any NTFS corruptions on…


Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.