Dropped a table but space not freed on drive

Hi All,
I had a table that was storing 244gb of data, I've truncated it then drop it in SSMS.
However it has not freed up the space of the drive.
I did try
dbcc shrinkfile(fileid)
Please Help.
Thanks
Rebekah

Hi Adding this
When you drop or rebuild large indexes, or drop or truncate large tables, the Database Engine defers the actual page deallocations, and their associated locks, until after a transaction commits. This implementation supports both autocommit and explicit transactions
in a multiuser environment, and applies to large tables and indexes that use more than 128 extents.
The Database Engine avoids the allocation locks that are required to drop large objects by splitting the process in two separate phases: logical and physical.
In the logical phase, the existing allocation units used by the table or index are marked for deallocation and locked until the transaction commits. With a clustered index that is dropped, the data rows are copied and then moved to new allocation units created
to the store either a rebuilt clustered index, or a heap. (In the case of an index rebuild, the data rows are sorted also.) When there is a rollback, only this logical phase needs to be rolled back.
The physical phase occurs after the transaction commits. The allocation units marked for deallocation are physically dropped in batches. These drops are handled inside short transactions that occur in the background, and do not require lots of locks.
Because the physical phase occurs after a transaction commits, the storage space of the table or index might still appear as unavailable. If this space is required for the database to grow before the physical phase is completed, the Database Engine tries
to recover space from allocation units marked for deallocation. To find the space currently used by these allocation units, use the
sys.allocation_units catalog view.
Deferred drop operations do not release allocated space immediately, and they introduce additional overhead costs in the Database Engine. Therefore, tables and indexes that use 128 or fewer extents are dropped, truncated, and rebuilt just like in SQL Server
2000. This means both the logical and physical phases occur before the transaction commits.
Link:
http://technet.microsoft.com/en-us/library/ms177495%28v=sql.105%29.aspx
You need to wait before internal operations complete and then please shrink in small chunks.
PS: Its well known fact shrinking causes logical fragmentation so you must rebuild indexes after shrinking is done
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it
My Technet Wiki Article
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