I have a Windows XP virtual machine running in Hyper-V on a Windows Server 2008 R2 physical host server.

I connect to the Windows Server 2008 R2 host via Remote Desktop from my Windows 8.1 Pro desktop computer.

In the Windows XP VM I would like to change the password for the local Administrator account.  Via Remote Desktop to the physical server, I open a Virtual Machine Connection to the Windows XP virtual machine.  Then I hit the "Ctrl+Alt+Delete" button on the Virtual Machine Connection toolbar.  I expected this would bring up the Windows XP Security Screen from which I would be able to change the password.  However, instead, it just pops open task manager.

I tried using the Hyper-V Manager on my desktop computer to connect to the server, but it does not support the older version of Hyper-V on the server, so I cannot open a Virtual Machine Connection without Remote Desktop in between.  I had hoped that without Remote Desktop in between, I might be able to use some of the terminal services keystrokes.

This is clean Windows XP Service Pack 3 with all Windows updates and nothing else and no configuration changes so that I can use it as a template for cloning off other Windows XP VMs.  I'd rather not enable Remote Desktop directly on the Windows XP VM, as that is a configuration change.

Does any one know how to change a password in a Windows XP virtual machine in Virtual Machine Connection via Remote Desktop?

Dan Jameson
Associate Director of IT/DBA
Children's Oncology Group
www.ChildrensOncologyGroup.org

Hello Expert,

I am using MS server 2008R2 hyperV. My HyperV VM was not shutting down for a long time, so I forcefull restarted my Base host machine, but after login in, i am not able to see my VM in HyperV manager. Then I created a new VM using the old VHD file, but I cannot login into the new VM, it shows password is incorrect whereas I am entering the correct domain password. Pls suggest what would be the best practice to recover the old VM now. All I have now is the old VHD file.

Swaprakash..

Hello,

In my company, we encounter some trouble with our actual setup.

Here is our system setup : 

- A server Windows 2012 R2

- Hyper-v feature installed

- Around 10 virtual host running on it, server only Windows 2012 R2.

- SAN for storage, lefthand, connected as ISCSI on each virtual host, for adding space storage. SAN and connection are made on a separated network, so 2 network connection per virtual machine, one for production network, the other one for SAN network for the ISCSI connection.

- SAN connection are setup on the Hyper-V host server as a network Team on Windows 2012 r2, setup like the following :

==> 2 Interface on the team

==>  Teaming type : Static

==> Load balancing : Hyper-V

On the Hyper-V setup for the virtual network, the interface is create to goes on the team create on windows, and then "Autorize windows to share this network card" is check. This create a windows virtual card for hyper-v, on which one we are assinging the IP address for our private newtork for SAN connection.

Problem is, once or twice per month, the connection fall down, and all our virtual machine lost the SAN connection. The only way to restore it as quick as possible is by doing the following :

 - unassign the SAN network on each virtual machine

 - Delete the virtual commutator on Hyper-V for SAN.

 - Delete the Team on windows

 - Create back the Team on windows

 - Create back the Virtual Network on Hyper-V

 - Assign back the ip address on the virtual interface

 - Assign back the virtual newtork on each virtual machine.

Anyone can help us about that problem ?

This is a really big problem for us.

Thank you.

Hi,

Host 2012R2 with Hyper-V-role, Backups are done with DPM 2012R2.

While job is working, three warnings are recorded in event-log of the guest:

partmgr / Event ID 58 / The disk signature of disk 2 is equal to the disk signature of disk 1.

partmgr / Event ID 58 / The disk signature of disk 2 is equal to the disk signature of disk 1.

partmgr / Event ID 58 / The disk signature of disk 3 is equal to the disk signature of disk 0.

This happens in all guests (with different disk numbers). No corresponding error on Host or DPM. Registry of each guest is growing in these keys:

HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2

The popular hint "attach the VHDs, bring them on- and offline, detach" brings no solution. As Mike Jacquet from Microsoft told in this thread, it is a problem of Hyper-V and not DPM.

Has anyone a solution for this? Thanks!

I need to install the Hyper-V Management tools onto a Server 2012 VM. However it won't let me install the management tools because it says hypervisor is already running. I've done this before from PowerShell but I can't remember the exact command that I used and it's driving me crazy. Anyone know how to install just the management tools on a 2012 VM?

Vincent Sprague

I'm trying to use the vhdtool.exe /repair , but nothing happens. 2008 R2. And yes I tried to expand with a snapshoot, so now I'm hoping for this tool to save me.

I have placed the vhdtool.exe file under same folder as the vhd and ahvd files, and run the cmd as admin from the same place as vhd fils are. And I expect that the < and > and the [ ] shall be left out when typing the file name and "repair" and that the avh and avhd shall be included in the file name.

I think the reason for nothing happens is that the filenames have a space in them. That's the only reason I can think about. There is no error message. It just list the options for the vhd-tool.

So my question is, can I rename my vhd and avhd files by using file mangaer ?

Or can I delete the snapshot the propper way, (not using file manager), and then hope for that the virtual machine will start ?

I expect by deleting the snapshot I will loose all changes (in that machine) since from the date the snapshoot was created ?

Hello

We have a 2012R2 Standard HyperV Server with 4 NIC's in a Team.

There is a Virtual Switch using the "Teamed" Adaptor.

The HyperV Host has two guest operating systems.

Server1 is able to ping the default gateway and access the internet until Server2 is rebooted. Then server1 can not ping the default gateway or access the internet until it is rebooted then Server2 cannot access the internet or ping the default gateway.

Both servers can ping themselves fine.

We have gone over the configuration of the router with SonicWall who have advised that it is not a SonicWall issue as the packets are not been received by the SonicWall.

Any help would be very much appreciated.

I have a Server 2012 R2 Hyper-V server with a physical partition consisting of 2 SSDs in RAID-1. I want to dedicate this entire physical partition to a SQL Server VM (OS, databases, log files, everything). What I've done is created a single vhdx file that is the maximum allowable size on that partition (in other words, I have a 100GB vhdx file stored on a 100GB physical partition).

My question is, is this the right way to go about doing it? Or should I configure these physical disks to be directly attached to the VM as outlined here.

Shaun

Hello,

We have environment of Hyper V 2008 R2 Sp1, Hyper V 2012 & Hyper V 2012 R2. I need to know if there is any site where MS publish list of recommended hotfix for these product and the list is regularly updated.

Thanks

Fakhrudin

Hello Everyone,

Recently we purchased a brand-new IBM server and installed Windows 2012 R2 Datacentre, SQL server 2012, TFS server 2013, etc. 

We would like to generate the hyper-v (VHD) file which will the replica of the above OS and will run as guest OS from the above server. Can anybody advise me how to develop the hyper-v, VHD file of Windows 2012 R2 Datacentre host OS?

If in case I required to do the all installation again on a new Hyper-V machine then can I generate the C:\ and D:\ partitions same as what I did on host operating system?  

Any help would be much appreciated.

Thanks, Ankit Shah

I hope someone here can point me at the right direction. It is somewhat critical as the machine that failed is our second DC. I have a Hyper-V host with two guests running on it. No changes have been made to the host or the failing guest machine. The host can talk to the other VM and vice versa. The host has an external network configured and has a checkbox for sharing the network adapter checked. The VM that is failing is using that particular network. Failing VM has a static IP configured within the same subnet as the host. I cannot ping the VM from the host and VM cannot ping the host. File and printer sharing is enabled on the guest. Let me know what kind of additional info I can provide but I'll start with the above. 

I recently bought a new system, which works just fine. I installed Windows 2012 R2, installed a SSD drive and 3 Western Digital 4Tb Red drives. I've created my Storage pools and installed the hyper-v role. I've also patched Windows through the normal Windows update process. I started building the 1st VM machine on this system. 

What I'm noticing is that the VM will tend to go into a critical state. If I stop it the machine will go into a stopping-critical state. If I leave the machine running it can sometimes go into a running-critical state. Restarting the host machine doesn't solve the problem. Restarting the Hyper-v server doesn't seem to resolve the issue either. And more importantly, it seems that the Hyper-v management interface refreshes VMs slowly. Note, the rest of Windows operates great. The switches and buttons inside Hyper-v respond fine, but the VMs don't work hardly at all. I've tried using generation 1 and generation 2 VMs, it doesn't tend to make much of a difference. 

I thought at first that maybe my drives were just slow so I created a new VM on my SSD, which does something like 90,000 IOPS and tried it there. I get the same behavior. I think this issue looks like a coding problem with Hyper-v more so than an environment problem with Windows or the hardware.

Is this a known issue by Hyper-v? Why do VMs go into a critical state so often?What's the deal?

What logs are best to look at in this situation?

Is there a limit to the size of the HOST hard drive?

I recently loaded Hyper-V on a server with a 2500GB hard drive array.  I did not notice till it was too late (server already in production with Guests) that the install created a 2047 GB partition and left 466 GB 'unallocated'.

Is there a 2 TB limit on the HOST?

we are getting some random crashes occasionally.  debug always has the same results.  can anyone make anything of this?  the host is up to date with both drivers and updates.  I've been all over the host and can't find any issues.  thank you

Loading Dump File [C:\Minidump\092613-10374-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*C:\symbolfiles*http://msdl.microsoft.com/download/symbols;C:\Symbols
Executable search path is:
Windows 7 Kernel Version 9200 MP (16 procs) Free x64
Product: Server, suite: TerminalServer DataCenter SingleUserTS
Built by: 9200.16628.amd64fre.win8_gdr.130531-1504
Machine Name:
Kernel base = 0xfffff800`b526d000 PsLoadedModuleList = 0xfffff800`b5539a20
Debug session time: Thu Sep 26 02:07:18.299 2013 (UTC - 7:00)
System Uptime: 18 days 8:02:55.169
Loading Kernel Symbols
...............................................................
................................................................
...............
Loading User Symbols
Loading unloaded module list
......
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {3, 2, 0, fffff880048f77a0}

Probably caused by : vmswitch.sys ( vmswitch!memmove+1e0 )

Followup: MachineOwner
---------

0: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: 0000000000000003, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff880048f77a0, address which referenced memory

Debugging Details:
------------------

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800b55c5168
unable to get nt!MmPoolCodeStart
unable to get nt!MmPoolCodeEnd
 0000000000000003

CURRENT_IRQL:  2

FAULTING_IP:
vmswitch!memmove+1e0
fffff880`048f77a0 8a440aff        mov     al,byte ptr [rdx+rcx-1]

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  DRIVER_FAULT_SERVER_MINIDUMP

BUGCHECK_STR:  0xD1

PROCESS_NAME:  vmms.exe

TRAP_FRAME:  fffff880082ce2a0 -- (.trap 0xfffff880082ce2a0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffffa8049315dc8
rdx=0000057fb6cea23c rsi=0000000000000000 rdi=0000000000000000
rip=fffff880048f77a0 rsp=fffff880082ce438 rbp=fffff880082ce7a0
 r8=0000000000000004  r9=0000000000000000 r10=0000000000000024
r11=fffffa8049315dc4 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl nz na pe nc
vmswitch!memmove+0x1e0:
fffff880`048f77a0 8a440aff        mov     al,byte ptr [rdx+rcx-1] ds:e080:00000000`00000003=??
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff800b52c6769 to fffff800b52c7440

STACK_TEXT: 
fffff880`082ce158 fffff800`b52c6769 : 00000000`0000000a 00000000`00000003 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`082ce160 fffff800`b52c4fe0 : 00000000`00000000 00000000`0000001e fffff880`082ce300 fffff880`082ce2a0 : nt!KiBugCheckDispatch+0x69
fffff880`082ce2a0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiPageFault+0x260

STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP:
vmswitch!memmove+1e0
fffff880`048f77a0 8a440aff        mov     al,byte ptr [rdx+rcx-1]

SYMBOL_NAME:  vmswitch!memmove+1e0

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: vmswitch

IMAGE_NAME:  vmswitch.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  510cbec2

FAILURE_BUCKET_ID:  X64_0xD1_vmswitch!memmove+1e0

BUCKET_ID:  X64_0xD1_vmswitch!memmove+1e0

Followup: MachineOwner

BarrySDCA

I have just installed Hyper-V Server 2012 R2.

I thought I could work my way through using this product, but I can't figure it out.

There is no GUI on the server, which is good, but for the life of me I can't firgure out how to remotely administer this thing.

I have followed instructions to install the Hyper-V management tools on Windows 7 and 8, but they will not connect.

I get a long laboriuos messages about permissions and HTTPS etc.

Can anyone who understands this system please point me to a guide that explains how to start and access a fresh copy of this product, Hyper-V Server 2012 R2.

I am not intending to connect to a domain at this point. I just want to install this stand alone Hyper-V sever and start setting VM's that I can access via RDP.

Win Server 2012 Standard, Hyper-V is its primary role.

This server has three VMs, none of which have a heavy load. All three VMs are set to start when the hardware starts. Yesterday I updated the host and rebooted it. I assumed all three VMs would start on their own since they're set that way and never checked them. This morning I discovered that they were all in the saved state, none of them started on their own. I was able to manually start them each, without any problems at all.

I checked the VM settings to verify they were all set to auto start. I checked the Windows server logs, no errors.

Anyone have any ideas what's happened here or what I need to change? Do I need to look elsewhere for other 'auto start' settings?

Our company file server have high usage on disk r/w.

Around 1TB user data on server link to GPO folder re-directly policy and 3 TB share file.

If plan to server 2012 with hyper-v + fixed disk design is it good?

Base on hyper-v practice large disk should using pass-through disk?

I have post my server performance issue before.  After that we will purchase new server 4 core CPU + 16GB memory + 1GB cache RAID controller to replace old server E2160 + 4GB memory + 512MB cache RAID controller.

From entry level Server to advanced level server.

http://social.technet.microsoft.com/Forums/windowsserver/en-US/a9728b45-d90b-4bf4-8c86-3ec302c052f0/hardware-recommend-for-30-workstations-and-using-folder-redirection-policy-to-file-server?forum=winserverfiles#d7b5827b-a1fd-433e-b34b-b1bf553a1e26

Thanks.

Hello All,

            Is it possible to install hyper-v and failover or in other words create a hyper-v failover cluster and then configure the networking part of the solution later?  As I am coming into terms with the networking part of it, wanted to do it later after the install.  Is it possible?