Tried these free utilities:
Paragon Partition Manager Free Edition - doesn't work with server OS. Rumours are it also doesn't support dynamic disks
MiniTool Partition Wizard Home Edition 7.5 - doesn't support Windows Server OS.
Ok, scrap the GUI - I need the job done. Will use diskpart command-line tool that is available on Windows Server.
start -> run -> cmd
Agree to run elevated, enter Administrator's credentials
see that my volume is #6
select volume 6
In windows explorer I can now see that my disk is 119 gigs, not 74 as it was. And files are all there. Non-destructive operation
list partition - see that offset is 94. This is alright - multiplied by 1024 it gives 96256 which is divisible by 4 and by 64. Good for SSD.
Shutdown the PC, unplug the power, remove SSD, implant it in the laptop, power on, voila! Windows 7 is loading from my new SSD now!