Difference between revisions of "data recovery software"
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| + | ==About== | ||
When drives and storage media become unreadable by the usual methods, it is often possible to recover data using specialized [[software]]. | When drives and storage media become unreadable by the usual methods, it is often possible to recover data using specialized [[software]]. | ||
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* [[ddrescue]]: like [[dd]], but handles read errors better | * [[ddrescue]]: like [[dd]], but handles read errors better | ||
===Windows=== | ===Windows=== | ||
| − | * [http://www.grc.com/sr/spinrite.htm SpinRite] is an excellent tool for recovering damaged data on otherwise apparently-healthy drives. | + | * [http://www.grc.com/sr/spinrite.htm SpinRite] is an excellent tool for recovering damaged data on otherwise apparently-healthy drives. (Proprietary; ~$90) |
| + | * [http://www.stellarinfo.com/partition-recovery.htm Stellar Phoenix Partition Recovery] (Proprietary; ~$100) | ||
==recovery== | ==recovery== | ||
(directories bad, raw data readable) | (directories bad, raw data readable) | ||
Revision as of 16:04, 20 January 2013
About
When drives and storage media become unreadable by the usual methods, it is often possible to recover data using specialized software.
Damaged data generally falls into one of two categories, which we'll arbitrarily designate as "rescue" and "recovery":
- rescue: the directory listing can be read, and filesystem-checking utilities (such as scandisk in Microsoft Windows and fsck in Linux) report no errors, but attempting to read files results in error messages, time-outs, or bad data
- recovery: directory listings are unavailable or damaged
Different software is appropriate depending on which of the two situations is occurring.
rescue
(directories ok, files/data bad)
Linux
Windows
- SpinRite is an excellent tool for recovering damaged data on otherwise apparently-healthy drives. (Proprietary; ~$90)
- Stellar Phoenix Partition Recovery (Proprietary; ~$100)
recovery
(directories bad, raw data readable)
Linux
- dares: attempts to identify known file types; does not recover directory info
- testdisk: looks for munged partitions, lets you adjust partition table
Windows
- GetDataBack
- PC Inspector File Recovery (English)
- Smart PC Solutions: versions for FAT and NTFS; "freeware"/"free download"