Clean format while keeping the OEM partition intact, will it work???

Lonnie Bruhn

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Mar 2, 2015
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I have done a great deal of research to find the answer to my particular situation with no luck. So I decided to ask it here to the community before proceeding. This is my first post here, hello to you all and thank you in advance for your input.

I also apologize for the lengthy posting but the details are important and I am hoping this will be a topic that can help others.

Before I begin, I should mention , I do know the difference between an OEM version, upgraded version, and retail version. I also understand each of their advantages and limitations regarding Microsoft licencing .

Here is what I am working on. I am fixing a computer for a friend and they are requesting a clean install of windows 8.1 on the primary C: drive but not from their recovery option

The important part is that this is the same system they had before. The only thing wrong with it is plagued with viruses. The same motherboard is still attached to their OEM key of windows and the same drive is also working properly. What they want is also a fine tuning and optimized performance. I was thinking of doing a clean and stripped down re-install of their Windows 8.1 but without all the bloatware and then fine tuning it from their. They requested it to be done this way if possible.

Since their OEM recovery partition is separate from their C Partition, I was thinking I could format the C drive and re-install a retail ISO version of Windows 8.1. because it comes very basic. Then apply their Windows ID (Not to be confused with the OEM key) associated with the original windows pre-installed OEM version.

A few details about the system and partition structure. This laptop is a touchscreen.

There are 4 separate partitions to this system. Which I have never seen, but Windows 8 is not something I'm most familiar with. Below they are listed as I see it in storage management from Left to right:

* 1000 MB Recovery Partition (NOT LABELED)
* 260 MB EFI SYSTEM Partition (NOT LABELED)
* 1000 MB OEM Partition (NOT LABELED)
* 424.24 GB C:/ OS Partition (PRIMARY)
* 25.00 GB D:/ (Lenovo) (PRIMARY)
* 14.9 GB (Recovery Partition)( {NOT LABELED)

I am assuming the 14.9 GB is the actual recovery image just by it's size.

The D:/ Lenovo drive holds all the OEM Lenovo applications and drivers for the system. I also know one of the partitions holds the one touch recovery software. I can't remember what the other two hold off hand. I would need to boot back into Linux to look again. I do believe all but the D:/ drive have boot folders..

Here are the question:

1: Can I format the C:/ partition using D-ban and format it. Then afterwards install a new windows 8.1 using my usb ISO and use their windows software ID to make it genuine if there are still OEM partitions still intact?

2: More importantly (and as I understand it) I should be able to format the OS C:/ without deleting any of the other partition and leaving them intact. Is that correct?

3: If I do that, will those OEM partitions still be unharmed and will the recovery image still be able to be used as a recovery option should they ever need it to restore it back to factory default?

4: Will the drivers still be accessible to update the system to match the configuration it needs to function correctly and will the applications still be available to install should they want to? Or would I need to hunt them down which isn't an issue but obviously this would save me the heart ache?

5: Will doing it this way create driver and system conflicts?

6: Also, I was thinking of making a temp partition to back up their files as if it were an external drive because the drive is in good condition so in this instance it seems safe? Or will formatting the root drive effect the functionality of all the other partitions and their reference structure to the old registry vs the new one? Plus because even though they are isolated drives, the partitions are still technically all sharing the same drive?

Can anyone help me make the right choice. Will this work?

Best regards
LB
 
If you are trying to do all of this on a single drive, messing about with different partitions, you will have issues. Unless you are very, very careful. Even then.

The only thing that really matters is their personal, critical data.
Save that elsewhere and offline.

Wipe and reinstall an OS? Sure. Nothing from the existing drive will be left. Nothing.

Find the relevant drivers. Save them offline and elsewhere first.

What you should do is:
1. use the existing recovery partition/function to create a set of DVDs. Forget the recovery partition. Reinstall from that DVD set.
and/or
2. Discover the current license key, which is embedded in the motherboard BIOS> Write this down, just in case. Do a full reinstall of the OS.
 
USAFret,

Thank you for the fast reply reply.


If you are trying to do all of this on a single drive, messing about with different partitions, you will have issues. Unless you are very, very careful. Even then.

In regards to partitions and all the different functions including formatting, I am very comfortable with it and not worried I would do any damage that couldn't be fixed even if I had to do it all over again. wouldn't be re sizing, merging or any tweeking to any other partition. I also wouldn't delete the C:/ drive partition, I would just format it. My main concern is , If I format C:/ and leave the other partitions untouched. (a) Would they still be wiped or would they be excluded? (b) If they stayed intact, would the one touch option still work after the re-install, and the drive with the applications and drivers still be accessible for installing the driver updates?Also, the other three unlabeled drives, would they recognize the new retail version of windows and function correctly during the pre-boot stage as they do now?

I'm assuming D:/ which holds the apps for Lenovo and the drivers needed to reestablish all functionality would still be accessible since it is the only other drive that is labeled and can be explored. I also believe if there were any conflicts, after installing the needed ones, it would resolve them. What I don't really know is what would happen to the other 4 partitions not labeled and this is the reason for my hesitation. Without looking, I am betting the three drives all work to help the recovery drive do its job. I also think one might have something to do with Legacy. I don't want to damage the on screen capability either.

The only thing that really matters is their personal, critical data.
Save that elsewhere and offline.

They don't have any critical data to save at all, it's basically new. There aren't even any docs/pics. It is there child's computer and he installed what he thought was a "free" account of Minecraft and now it is popup heaven when accessing online with any browser. The only critical data is the Lenovo drivers, apps, and the OEM functionality. All of that I have backed up and I have both the Windows ID and the OEM key embedded to the motherboard. I will also not have a hard time finding their drivers. The important one is the Network adapter.

What you should do is:
1. use the existing recovery partition/function to create a set of DVDs. Forget the recovery partition. Reinstall from that DVD set

If it were my system I would format the entire drive wiping all partitions and install windows retail, use my OEM key. Then build my own recovery partition using clonezilla. A method Steve Si over at http:// figured out. It is worth the read and it works because I did it with my system after my HDD took a dump.

I don't feel comfortable removing their one key recovery option because DVD's can be unreliable and lost if not stored properly and I personally don't have a problem with a factory default recovery system. I have a problem with OEM windows and their bloatware. The difference between a retail version start up sequence and a OEM start up sequence is unbelievable. It was shockingly fast because it has nothing on it.
 


Can you remove this thread. I would like yo update it and then re post it in in the Storage section of the forum section instead.
Thanks.