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Windows 7: revert back to pre-installed os came in laptop.

01 Jul 2012   #11
A Guy

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

It isn't that there is a known data that won't delete. F5ing is bringing up the possibility that the recovery of Home Premium may not completely remove some elements of Ultimate, and preparing the partition may be in order. I cannot say if that will be the case. A Guy


My System SpecsSystem Spec
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02 Jul 2012   #12
F5ing

Windows 7 Ultimate x64
 
 

Additionally, pirated/cracked software is popular way to spread some pretty serious malware. There is an area between a hard drive's first sector, where the Master Boot Record (MBR) resides, and the first sector available for the first partition. Sometimes called the hidden area after the MBR. The way I understand it, it's a prime area for malware to hide as there are no "standard" means of detecting what's there. You can't see it with Explorer, standard file system tools or most AV software. Using Diskpart in conjunction with its clean command wipes out whatever is there, in addition to the MBR/PBR. That also means the disk loses track of all it's partitions, including any Samsung recovery/tools partitions.

If your recovery disks are designed to allow you to restore your hard disk, including all of the Samsung special partitions back to factory conditions, I would want to make sure that hidden area after the MBR was erased. But I don't know if using Samsung's recovery disks actually wipe that area clean, and don't know if it restores all the Samsung special partitions. If you know the disks can be used to restore to a brand new hard drive (like you were replacing a failed original hard drive) back to "factory condition" then I would clean that hidden area first, then use the recovery disks to restore.

But I'm just paranoid like that. I just don't know if reinstalls, either via OEM recovery disks or standard install disks, overwrite that hidden area. So I always manually run that clean command before restoring/installing, just to be on the safe side. It only takes a few minutes to do it. You've just got to have the proper restore media to bring you back to the state you want to be in.

Hope that helps and is not too confusing.
My System SpecsSystem Spec
02 Jul 2012   #13
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Do you have a COA sticker on your laptop showing the license code? If so, better you first download the original home premium iso from digital river, and install using that. Put the product code during installation, check 'activate automatically when online' and you are done.

But, dont forget to backup the user data, as suggested earlier.
My System SpecsSystem Spec
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02 Jul 2012   #14
A Guy

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

He no doubt had an OEM version. Will that COA number work with a DR download? A Guy
My System SpecsSystem Spec
02 Jul 2012   #15
F5ing

Windows 7 Ultimate x64
 
 

Yes, the COA will work. If you decide to do it that way you could just follow this tutorial by gregrocker: Clean Reinstall - Factory OEM Windows 7

When you get to the point when you boot from the DVD/USB installer and you're at the first screen waiting for your input, you can open a command prompt (shift+F10) and run diskpart's clean command.
My System SpecsSystem Spec
02 Jul 2012   #16
A Guy

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

Thanks Sibbil Must spread some rep, but you provide good help. A Guy
My System SpecsSystem Spec
03 Jul 2012   #17
F5ing

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by A Guy View Post
Thanks Sibbil Must spread some rep, but you provide good help. A Guy
Not to worry. The thanks offered does the trick.
My System SpecsSystem Spec
Reply

 revert back to pre-installed os came in laptop.




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