You can successfully clone Windows systems as long as the hardware is identical (or very close to it). I used to do this every day in my corporate job however, there are a couple of things you may need to address separately.
First, in a Domain or Workgroup, each system must have a unique SID (Security Identifier), or you will run into problems with resource permissions. Many cloning programs provide a way to address this issue. Some will handle it "on-the-fly" and some provide a separate utiltiy that you run at the end of the process to generate a random SID. If not, Microsoft provides a free utility for this purpose:
Second, each cloned system will now have the same Windows serial number. In my corporate job, we had an enterprise license for windows, so our Windows serial number was expected to show up on literally thousands of systems, but if you have individual licenses, you will need to update the registry on each system to ensure each has its own valid Windows license.
-- OR --
You can use Microsoft's SysPrep utility which will address these and other issues.
Here's a link detailing how to use SysPrep:
Here's the process we used:
Finish setting up the first (Master) system. Once it's "perfect"...
1. Run Windows Defrag program to defragment the disk.
2. Run CHKDSK /F to clean up any minor disk errors that might interfere with the cloning process.
3. Re-boot and allow CHKDSK to complete.
4. Clean up any .CHK files from the root directory.
5. Run SysPrep.
6. Shutdown Windows
Now, you can clone your master system to create the file you'll use to load the remaining systems. SysPrep will setup your cloned image so that it works like a preloaded system you might purchase at the local compouter store. When you boot up the cloned system, it'll even prompt you for the Windows serial number if you've set it up properly.
Just remember... DON'T boot up the master system until after you've cloned it or you'll undo everything SysPrep has setup. If you need to make a change to the master system, you will need to repeat the above steps again before cloning.
Hope you find this helpful...