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Windows 7: Image your system with free Macrium

05 Feb 2014   #1511
lehnerus2000

W7 Ultimate SP1, LM18.1 MATE, W10 Home, #All 64 bit
 
 

Quote   Quote: Originally Posted by Bellzemos View Post
Another thing concerning speed. As I said, I made a full disk image (hidden system partition + C partition + D partition), 193 GB alltogether. So I created the image on an external USB 3.0 HDD and it took 1,5 hour to do it. Transfer rates were from 43 MB/s to 35 MB/s when writing to the external HDD. Isn't that kind of slow for an USB 3.0 drive?
That seems about right to me.

I can image/restore at ~3 GB/minute to ~4 GB/minute using internal HDDs.
External HDDs will be slower.


My System SpecsSystem Spec
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05 Feb 2014   #1512
alan10

Windows 7 Ultimate 64 bit SP1 x64
 
 

Quote   Quote: Originally Posted by whs View Post
Quote:
I also made a rescue CD - Win PE, 64-bit version (does that mean I can't use that CD to restore a 32-bit computer?),
That is correct. But most PCs can do 64bit today. Only very old PCs may be 32bit only.
In my view that is an exceptionally dangerous assumption.

A 32 bit application can run on a 64 bit Windows 7 system.
A 32 bit WinPE can be loaded into 64 bit wide RAM and restore an image read from a USB serial external drive to restore through a SATA or IDE interface to your internal drive.

A 64 bit application uses 64 bit wide RAM and uses 64 bit wide instruction codes to can reach beyond the addressing limits of a 32 bit system.

64 bit WinPE needs only a few hundred MB of RAM to execute,
but has the capability of addressing more than 4 GB of RAM.

It is more than probable that when Macrium runs on a full blown live 64 bit Windows system it will use 64 bit wide instruction codes,
and when Macrium creates WinPE it is unlikely to restrict itself to 32 bit wide instruction codes,
and your 64 bit WinPE CD will be unable to load 64 bit instructions into a 32 bit wide RAM.

What is safe to assume is that a 32 bit WinPE will successfully restore an image to a 64 bit system.
I have actually used an old WinPE created under 32 bit XP to restore 64 bit Windows 7 images.
My System SpecsSystem Spec
05 Feb 2014   #1513
alan10

Windows 7 Ultimate 64 bit SP1 x64
 
 

Quote   Quote: Originally Posted by Lady Fitzgerald View Post
Quote   Quote: Originally Posted by whs View Post
I think verify checks the hash total. What else could it be doing.
I'm thinking mounting the image and comparing to the original. Verification takes too long to just be checking hash totals. It takes almost as long to verify the image as it does to make it.
Actually there is no single hash checksum - there are thousands of them.
I think the checksums are computed and embedded in the file every ? MBYte
(Macrium have published the interval but I cannot remember).

It is VERY WISE when restoring to select the image file and NOT restore until you verify.
Your image file might be corrupted and it would be sad to have the restore operation first erase C:\ and then restore the first half of your Windows and then abort, leaving you with an UN-bootable system.

N.B.
If a backup is corrupted and you really want to restore regardless of corruption,
there is a simple registry fix to disregard errors,
and perhaps you could create a WinPE CD that would restore a corrupted image.
I truly hope to never be in that position.

Regards
Alan
My System SpecsSystem Spec
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05 Feb 2014   #1514
Bellzemos

Windows 7 Ultimate x64 SP1
 
 

Thank you for all the comments, it seems I'm doing things right.

There's a thing though - since I used Reflect I have WmiPrvSE.exe running in the background all the time. I never had that before. I googled it and it says it's a process that's used in the enterprise environment - but I am a home user. What's that about? Can I disable it?
My System SpecsSystem Spec
05 Feb 2014   #1515
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Right click on it and see whether the path is C:\Windows\System32\wbem - if yes, then it is OK and legit.
My System SpecsSystem Spec
05 Feb 2014   #1516
Bellzemos

Windows 7 Ultimate x64 SP1
 
 

The path is right and the file is legit, I tested it at VirusTotal. The thing is it wasn't running before I used Macrium. So do I have to have this process running all the time to use Macrium once a month?
My System SpecsSystem Spec
05 Feb 2014   #1517
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

No idea - and it is not really 'running'. It is just sitting there doing no harm. Why would you want to muck around with it.

When you eliminate it, the best that can happen is that you save a few bytes in RAM - the worst that can happen is that you brick your system.
My System SpecsSystem Spec
05 Feb 2014   #1518
mjf

Windows 7x64 Home Premium SP1
 
 

Quote   Quote: Originally Posted by lehnerus2000 View Post
Quote   Quote: Originally Posted by Bellzemos View Post
Another thing concerning speed. As I said, I made a full disk image (hidden system partition + C partition + D partition), 193 GB alltogether. So I created the image on an external USB 3.0 HDD and it took 1,5 hour to do it. Transfer rates were from 43 MB/s to 35 MB/s when writing to the external HDD. Isn't that kind of slow for an USB 3.0 drive?
That seems about right to me.

I can image/restore at ~3 GB/minute to ~4 GB/minute using internal HDDs.
External HDDs will be slower.
An update on speed.
I just imaged 47GB to one of my external USB3 WD 1 TB MyBook Essentials HDDs and it took 10min 21 secs. Also, the ext HDD had ~230MB free. If the HDD had been empty the image time would have been lower.
My System SpecsSystem Spec
05 Feb 2014   #1519
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

That is about in-line with the times I am seeing => 7.4 min for 38.4GB. But we have our systems on SSDs. That may make a difference.
My System SpecsSystem Spec
05 Feb 2014   #1520
lehnerus2000

W7 Ultimate SP1, LM18.1 MATE, W10 Home, #All 64 bit
 
 
Interesting

Quote   Quote: Originally Posted by Bellzemos View Post
There's a thing though - since I used Reflect I have WmiPrvSE.exe running in the background all the time. I never had that before. I googled it and it says it's a process that's used in the enterprise environment - but I am a home user. What's that about? Can I disable it?
I don't have that service (WmiPrvSE.exe) running constantly on my PC.

I get a few instances (4 - 7) of WmiPrvSE.exe, if I run hardware monitors (e.g. Speccy or SIW.exe).
My System SpecsSystem Spec
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