Difference between sector-by-sector & data only backups

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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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I understand how the sector-by-sector & the data sectors only backups work, but just wanted to make sure that when the "data sectors only" backup is restored to another drive on the same computer, you will be able to boot up the newly restored disk. I just did a backup with the "sector-by-sector" box cleared. It created a much smaller tib file. If I need to put in another hard drive due to my C: drive going bad, when I restore the backup to a new hard drive on this PC, it will boot up after a restart, correct??

Also I made this backup in another PC. When I looked at the tib file, it should the backed up drive as "E:" & "F:". There are 2 partitions on the drive being backed up, so this correctly shows 2 drives. But will I need to change the letters on these 2 folders in the tib file to make sure they are restored as C: & D:?? Actually the "F:" drive was the manufacturers system restore folder, which usually has no drive letter & is hidden. I just want to make sure what is referred to as "E:" in the tib file will restore as the new C: drive. I hope I'm not too confusing.

Thanks for your help!!

Sat, 03/13/2010 - 18:16
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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Chris:

A "normal" backup (not sector-by-sector mode) is smaller for two reasons. First, it only includes "in-use" sectors, and second, it does not copy pagefile.sys and hiberfil.sys (it includes only placeholders for these two files) since Windows will re-create these files when it boots. As a result, a normal backup will often compress to about 70% of the USED space on the disk. The sector-by-sector option is normally used on disks with bad sectors or with accidentally-deleted files when you want to make a backup for the purpose of doing forensic recovery, since it will preserve the contents of both used and unused sectors. Also, it is used for imaging unsupported file systems.

Yes, you should be able to put a new, blank hard disk in your PC and restore the contents of the backup to the disk. However, your statement "I made this backup in another PC" is somewhat of a concern. Do you mean that you backed up computer A and intend to restore it to computer B? If so, that may not work. Windows will have the wrong hardware drivers so it may halt with a bluescreen stop error when you try to boot it. Restores to different hardware require the Acronis Universal Restore option, part of the PlusPack.

But if you meant that you removed the disk from computer A, installed it in computer B and then created an image of the disk from computer A, intending to later restore this image to a new disk in computer A, then that should work.

Pay no attention to the drive letters that you saw when creating the backup image - they are irrelevant. When you restore the image they should sort out and the main OS partition should get the C: drive letter assigned by Windows when you boot for the first time.

Sat, 03/13/2010 - 19:49
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