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Windows 7: Seeking advice regarding unusual reinstallation method

View Poll Results: Is this viable?
Absolutely ridiculous. Just back up to an external drive. 3 100.00%
Go for it! 0 0%
Voters: 3. You may not vote on this poll

15 Mar 2010   #1

Windows 7 Ultimate
 
 
Seeking advice regarding unusual reinstallation method

I would like perform a clean install but have no where to back up to. I have devised an alternate plan that involves installing Windows on a fresh ~20GB partition and migrating the contents of a ~120GB data (and currently main OS, i.e. drive C:) partition over to the 20GB one. I have never attempted such an unconventional method of reinstalling, therefore I seek advice from the community as to whether it is worth doing and if there are any nasty issues I might encounter.

Here is an outline of my plan
  1. On a 140GB hard drive, partitions are as follows:
    • 140GB partition C: with 20GB of free space.
    • 8GB restore partition which for all intents and purposes can be ignored from this point on.
  2. 140GB C: is shrunk to 120GB and a new partition F: is created from the 20GB of newly allocated space. The hard drive would then have two partitions, a 120GB C: and a 20GB F:.
  3. Install Windows on the 20GB F:, leave 120GB C: untouched.
  4. Start migrating everything from 120GB C: to the 20GB F:

I surmise it would be very tedious to migrate 5GB (Windows would only occupy 15GB on the 20GB F: ) at a time between the drives and continually adjust the partition sizes so that they total to 140GB (i.e. once the first 5GB is migrated, C: could be shrunk to 115GB and F: expanded to 25GB. Repeat as needed until F: contains all the data that was originally on C:, then finally remove the old C: and rename F: to C: .)

Opinions?

My System SpecsSystem Spec
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15 Mar 2010   #2

Windows 7 Enterprise 64-bit
 
 

I don't really understand step 4. Also, you just made my head spin. It would be wiser to backup everything to an external drive and then perform a clean install. What you're suggesting is way too much work.
My System SpecsSystem Spec
15 Mar 2010   #3

Windows 7 Ultimate
 
 

Basically, I want to reinstall without having to copy over to an external hard drive. Instead of reformatting and installing on the large 140GB partition, I would do a clean install on a tiny 20GB partition. It would be akin to dual-booting. Once I have the 20GB clean installation, I could just start moving the data from the larger partition to the new one. The goal is to leave the data untouched and to allow for easy transfer.
My System SpecsSystem Spec
.


15 Mar 2010   #4

Windows 7 Enterprise 64-bit
 
 

For standalone file types (ie MP3, JPG, etc), it would be fine. But I would expect many programs would stop working and need to be reinstalled, so really there's not much of a point. I'd really suggest getting an external drive from someone or somewhere. I don't know where you're located, but Costco has some, and they let you return anything for any reason, so you can just buy it and then return it.
My System SpecsSystem Spec
15 Mar 2010   #5

Microsoft Community Contributor Award Recipient

Windows 8.1 Pro with Media Center
 
 

Think: moving 5 gig at the time, shrinking one partition, expanding another. Repeat this over 20 times, yet you'd have to re-install all the applications after this process.

I could give you ten more easy ways to screw your Windows 7 setup and HD if you really want to do it, no need to make it too complicated

IMO you have two options: buy a cheap external HD and use Easy transfer, or forget it.

Kari
My System SpecsSystem Spec
15 Mar 2010   #6

Windows 7 Ultimate
 
 

Yes, I kind of figured expanding and shrinking so often would probably take eons. Regarding the Costco suggestion: you read my mind. That is exactly how I planned on getting an external drive. Guess I'll just have to wait until next convenient time to stop by Costco after all.
My System SpecsSystem Spec
15 Mar 2010   #7
Microsoft MVP

 

If you want to try this, then the tool to use is free Partition Wizard bootable CD, which rarely fails in resizing operations.

Immediately after installing 7 to expansion partition, use PW to Modify>Set Inactive C: so that you can delete all of the old OS files thereby making resizing of F: go faster.

You could also leave the data files on C: to access from new Windows 7 partition using this: User Folders - Change Default Location
My System SpecsSystem Spec
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 Seeking advice regarding unusual reinstallation method




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