Windows Server 2003 extremely slow

[Juicy Jon]

Need some serious assistance!
Okay guys my weekend is relying on this. One of our client's DC went down (Server 2003 R2 SBS) I have mounted and virtual booted the latest back up (on the BDR) for it using Shadow Protect and Virtual Box. Upon boot the thing takes HOURS to get the login screen. Once I enter the credentials and login it takes about a hour+ to get to the normal windows GUI. Once inside I can move the mouse and all that good stuff. However, when I try to open any applications or just the start menu nothing will open. I try to install the guest additions and it just spins and nothing comes up. Out of frustration I shut everything down and went home to work on it. I did add 4+ gbs of RAM to make it a total of 8gbs and increased the video from 16 to 32mb. I am still waiting for the windows screen to appear. Any help is appreciated. I am working remotely and going to the client location is not possible right now but I will have someone on-site if I need be tomorrow.

Side notes:
The server this is being hosted on has 16gb of RAM.
Windows Server 2012
Upon watching the performance while it boots up the CPU and RAM are not spiking and acting crazy at all.

[scottgus1]

Sorry to miss the weekend. This link from Shadow Protect (https://www.storagecraft.com/support/kb/article/132) shows what versions of Virtualbox it works with. Are you on the right version? Did they tell you how to set up the guest's Virtualbox settings?
Since your guest is a Shadow Protect guest, you'll probably get the best tech support from going to them (you probably already pay for it).

FWIW I run a SBS2003 R2 32-bit guest on Virtualbox with really good response times, boot to ctrl-alt-del window in 4 minutes, log on to desktop in another minute max. The flavor of guest OS doesn't seem to be your problem.