[thopok]

Understanding the error message “There is not enough space available on the disk(s) to complete this operation” when you create a volume
You can also repartition hard disks with a third-party partitioning program. Several third-party manufacturers offer programs that allow you to repartition your hard disk without erasing data.

win Vista (82 GB)...
...jednu particiju sa 50 GB prostora

A koliko je trenutno zauzeto?

normalno napravim novu particiju s Vista alatim za particioniranje i onda je trebam formatirati

Prvo treba create unallocated disk space(ili dotični več postoji?), a to ne dopušta.
How to work with partitions in Windows Vista / XP when Disk Management doesn’t work

stvorim novu particiju ali kad je idem formatirati javi

Slika Disk Management-a?