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Must a "bare metal restore" always be to a same size or larger drive? Some say "yes" some "no"

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My question is the same as the subject line.

I am trying to figure out why my multple OS, multiple partition backups are failing. I am trying to use a smaller drive as the destination, it's all I have right now. At this point I'm not even sure I could restore my source disk onto itself and I don't want to try for fear of losing it all....

I have read the very helpful posting: https://forum.acronis.com/forum/41282 by GroverH w/ attached screenshots. I am using the 2014 version not the same one in the posting.I have NOT used the restore disc method that GroverH calls out in the posting.

No sense to try again if I can't use a smaller destination drive....Unlike the "REDO" program, Acronis never complained about the drive size, when I install the images.

Thanks you!

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There is no requirement that the target disk be the same size.

The target size as a general rule should be NO SMALLER THAN  A MINIMUM OF 25-50 % larger than the USED space of the source disk.

A disk option restore (disk checked) will restore to a smaller disk
but the automatic partition size allocation may not be acceptable. Depending upon how your partitions are configured, a restore of individual partitons may be the preference. Before you click the proceed button, On any restore, you can alwayis get to the summary screen which spells out the sizes and actions that will occur during the restore. You may attempt the disk option restore and look at the summary for a deciding point.
As a general rule, the only partitions to change sizes on is the Windows partition or any data partition. No size change on a recovery or tools partition.

This has been applIcable to MBR disks. GPT style partitioning is not covered by my guides.

My restore guides are listed in signature link 3 below, items 1 and 2 for restore to disks.

GroverH wrote:

There is no requirement that the target disk be the same size.

The target size as a general rule should be 25-50 % larger than the USED space of the source disk.

Thanks GroverH always a pleasure.

I dl/d your PDF and will review it, it's already answered one of my questions!

I will check the drive sizes and make sure I am within the used tolerances for the source drive that you mentioned.

Regards!

I make it a practice of occasionally checking all my partitions for disk errors.