The case is I want to recover my data on a hard drive partition, drive E which has gone raw. I want to install a recovery software on drive C which is actually a part of the same hard drive. I have only one hard drive(C drive) present in my computer with its partitions C drive itself and E drive. Installing or using something on C drive shouldn't overwrite data on E drive, am I right?
If you Install software or Format even one partition, the rest of the partitions stay untouched. So if you Install software or format C, the E will be untouched.
If the drive is not overwritten then the data recovery is also possible. It is somewhat tricky, but is possible.
Remember always, if you repartition and Format the disk then afterwards the data is untraceable, which remains on the disk.