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disk first aid wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 situations to use the tool 2 analysis 3 see also 4 notes toggle the table of contents disk first aid add languages add links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia deprecated apple utility software disk first aid developer apple inc stable release 8 6 1 may 3 2001 25 years ago 2001 05 03 operating system classic mac os type software utility website support apple com kb ta26794 disk first aid is a free software utility made by apple inc that was bundled with all computers running the classic mac os 1 this tool verifies and repairs a limited number of directory structure problems on any hfs or hfs plus hard disk or volume 2 disk first aid is a very simple tool with it only being able to detect and repair directory damage 3 and many books are critical of its sometimes inaccurate reporting of errors and often suggest to run the tool more than once to ensure a consistent result 3 4 5 disk first aid is located in applications utilities disk first aid 4 the classic mac os provides an option to run disk first aid on startup although it has been reported that it provides little gain and sometimes can amplify a problem 4 its capabilities were incorporated into disk utility in macos situations to use the tool edit one source suggests that disk utility should be used when there are frequent system crashes disappearing files files changing size problems copying files from one place to another problems saving files cryptic error messages 5 as well as for general maintenance every 6 months 6 analysis edit disk first aid has built in capabilities to check for damage to partition map device driver boot blocks master directory block volume bitmap catalog file extents file finder attributes 4 disk volume extent b tree catalog b tree catalog hierarchy volume info and to search for locked volume name 7 after analyzing the disk directory disk first aid determines whether it is able to repair any damage that was detected the utility can commonly only fix problems associated with the catalog extents files and the volume bitmap 4 commonly the program reports that there is an error but cannot fix it 3 see also edit list of data recovery software notes edit watson andrew 2008 02 07 disk first aid utility in mac archived from the original on july 8 2008 retrieved 2009 01 12 stauffer todd 2004 how to do everything with your imac mcgraw hill professional p 456 isbn 0 07 223188 2 retrieved 2008 01 12 1 2 3 breen christopher 2002 mac 911 peachpit press pp 104 5 isbn 0 201 77339 2 retrieved 2008 01 12 1 2 3 4 5 landau ted 2000 sad macs bombs and other disasters and what to do about them peachpit press pp 805 11 isbn 0 201 69963 x retrieved 2008 01 12 1 2 in os x what is first aid and when and how should i use it university information technology services knowledge base indiana university 2008 12 18 retrieved 2009 01 12 disk first aid for macintosh it service desk 8help ohio state university 1999 06 04 archived from the original on 2009 03 17 retrieved 2009 01 12 mac os 9 how to use disk first aid computing uw madison knowledgebase university of wisconsin madison 2001 02 09 retrieved 2009 01 12 retrieved from https en wikipedia org w index php title disk_first_aid oldid 1364857239 categories classic mac os classic mac os only software made by apple inc hard disk software classic mac os only software hidden categories articles with short description short description matches wikidata cs1 unfit url this page was last edited on 18 july 2026 at 23 07 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents disk first aid add languages add topic