On Nov 19, 2011, at 9:15 PM, Amanda Ward wrote: > Hi All… > > Recently I've had problems with files I've downloaded not opening because the > file is "corrupted" or has an "invalid checksum". Also found files that I've > downloaded in the past and successfully installed are now corrupted, etc, etc… > Most recently the backlog of updates from software update have failed to open. > > I have no clue of what is causing this. Any advice will be greatly > appreciated. > > Amanda > > Model Name: iMac > Model Identifier: iMac8,1 > Processor Name: Intel Core 2 Duo > Processor Speed: 2.4 GHz > Number of Processors: 1 > Total Number of Cores: 2 > L2 Cache: 6 MB > Memory: 4 GB > Bus Speed: 1.07 GHz > Boot ROM Version: IM81.00C1.B00 > SMC Version (system): 1.29f1 > OS 10.7.1 > Boot from Lion's Recovery HD and run disk repair and/or verify in Disk Utility. If it finds errors that it can't repair, run DiskWarrior 4.3, the version compatible with Lion. You probably will find some volume information and directory errors. If not, run Drive Genius 3 and scan for bad sectors, then run it again and do the read and write integrity check tests. My advice is based on experience, and on a hunch that your hard drive may be failing. You are careful to do backups of your data, right? Assuming you are, and the backups are bootable, what happens when you boot from your backup drive?
HTH, Jim Scott -- You received this message because you are a member of the iMac Group, a group for those using Apple iMacs and eMacs. The list FAQ is at http://lowendmac.com/imac/list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/imaclist
