Disk scan gives very detailed and accurate results but takes long time. If you want to find only partitions previously existed on the disk you may use fast search for lost partitions which is much faster.
To perform fast search for lost partitions,
|1||Select an object on the R‑Studio 's Drives panel|
|2||Click the Fast Partition Search button|
R‑Studio will start searching for lost partitions showing its progress.
|>||R‑Studio will show fast found partitions in blue.|
You may control-click the partition and select Complete scan to scan the entire disk.