After copying a Windows 2000 installation (differend disk/partition, same machine) you get the following error:

Your system has no paging file, or the paging file is too small.

Followed by instructions on how to change the paging file settings.

Unfortunately, after you clicked ‘OK’ and are waiting for the desktop to appear, you get the login screen again and are thus unable to login to your Windows installation.

Googling finds the following page:
This page mentions a number of possible solutions, none of which seem to be really feasible:

If however you have another partition that still works on the same machine (probably the source partition you copied) and you can access the ‘new’ installation partition from this one, you can try the following much easier solution:

  • Boot Windows using the working partition
  • Start Regedt32
  • Choose ‘File/Load Hive’ from the menu
  • Open on the new, faulty partition Windows\System32\Config\Software and give it a name (e.g. tmp) when asked
  • Perform the change as mentioned under 3. at in this ‘tmp’ hive
  • Choose ‘File/Unload Hive’ to save your changes

Try to reboot your new installation again. Hopefully it will work for you. At least it did for me.
Now, follow the instruction in to restore the correct drive assignment.