I would advise against it, as with that amount of data you will almost certainly overwrite what you are trying to recover. You need a separate drive with al least as much free space as the source drive.
Have you tried a scan with Scan for Non-Deleted Files checked? If you did a quick format this may be of more help than a deep scn, which does not return file names or directory structure, and only recoveres the first extent of any file.
Deep scan completed and returned 169 files worth 267GB. But as I recall, about 600 -700GB of that drive was used. I wonder what those 25,882 ignored files are tho.
By the way, quick scan with scan for non-deleted files showed 2 useless files only, so I'm gonna do a deep scan for non-deleted files.
And as I'm yet to buy a drive to recover those 169 files too, can I hibernate/sleep my pc till then?
Those ignored files are files that have not been deleted, live files from the install and whatever else has taken place.
A deep scan with scan for non-deleted files doesn't make sense. Addresses for non-deleted files are held in the MFT, and a deep scan doesn't look at the MFT.
If you have run a format which zeroes the free space then all this is of no avail.
All files found with a deep scan will be in Excellent condition, as a deep scan looks at unallocated clusters, which by definition can't be in use by any other file.
A deep scan will only find the first extent of any file, as there is no method at the cluster level of linking extents together. This may result in the file being upopenable.