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Windows 7: Win Backup

12 Jan 2011   #1
BobS

Windows 7 Home Premium
 
 
Win Backup

Win Backup does incremental backups after the initial full backup and will do a full backup from time to time "as needed" according to windows help. I have two questions:
1) How and when does win backup decide to do a full backup instead of an incremental backup?
2) How does one force a full backup instead of an incremental backup?


My System SpecsSystem Spec
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12 Jan 2011   #2
Hopalong X

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

I can answer #2.

You can do one manually whenever you want.
Click Start> Device Manager> BackUp and Restore.
On the right side under Backup click Back Up Now.
It makes a new one.

Mike
My System SpecsSystem Spec
12 Jan 2011   #3
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Hopalong X View Post
I can answer #2.

You can do one manually whenever you want.
Click Start> Device Manager> BackUp and Restore.
On the right side under Backup click Back Up Now.
It makes a new one.

Mike
I don't think so Mike. It will do an incremental if the next scheduled one would be incremental. I asked the question about how it decides what to do in another thread and no one knew. In my case it seems to do a new full backup when the backup set is around 20GB but even that is a bit variable. The highest I have seen is 26GB and the lowest 19GB.
My System SpecsSystem Spec
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12 Jan 2011   #4
Hopalong X

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

I make a new full every two week. I make no incrementals. Date and time stamped on each.

Mike
My System SpecsSystem Spec
12 Jan 2011   #5
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Interesting. It doesn't always for me, but then I have a scheduled backup each day and only do a manual one if for some reason I miss the scheduled one.
My System SpecsSystem Spec
12 Jan 2011   #6
Hopalong X

Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
 
 

Since I don't have any set to Auto make or back up I guess it makes a full.

Learned something new.

Thanks Kado.

Mike
My System SpecsSystem Spec
12 Jan 2011   #7
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Of course we don't really know what makes it do a full backup. It may have something to do with the time between backups amongst other things, although I suspect it is more related to the number of changed files and possibly the backup disk size.
My System SpecsSystem Spec
12 Jan 2011   #8
mjf

Windows 7x64 Home Premium SP1
 
 

Kado 897 is correct.
"Backup now" does not necessarily initiate a new backup set (the set of zips) unless your default media is DVD - then it does.
The only sure way of forcing a full new backup that I have found is to use "change settings" to a different default backup location. It will force a new backup at the new location or the change will be cancelled. When you return to your "normal" backup location, unfortunately, it forces another full backup.

From time to time Windows will initiate a new backup in your default location. I don't what the algorithm is for making this decision.
Not an ideal situation.
My System SpecsSystem Spec
12 Jan 2011   #9
kado897

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Thanks for that. It would be nice to have some control over it.
My System SpecsSystem Spec
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