How to use OEM Windows 7 COA from eBay/etc?

Discussion in 'Windows 7' started by mrjayviper, Apr 16, 2017.

  1. mrjayviper

    mrjayviper MDL Novice

    Sep 7, 2013
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    #1 mrjayviper, Apr 16, 2017
    Last edited: Apr 16, 2017
    Hello. I was reading an softpedia article and it mentioned there are plenty of Windows 7 COA that are being sold cheaply.

    Can this be use on any desktop/laptop? My desktop is just something I assembled myself.

    From what I understand reading another guide, I need to run

    slmgr.vbs -ilc C:\OEM-HERE.xrm-ms

    But what can I do if the seller or myself don't know the OEM for the COA?

    Any help is appreciated. Thanks a lot
     
  2. Threat

    Threat Lord of the Files

    Feb 23, 2014
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    Depends on the type of key ... but I would not buy one tbh. They are mostly OEM keys so illegal to resell (tied to the hardware)

    If you going to use an illegal method, you may aswell look at other options. KMS, Daz Loader, BIOS mod+OEM:SLP (my favourite)
     
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  3. s1ave77

    s1ave77 MDL Guide Dog/Dev

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    #3 s1ave77, Apr 16, 2017
    Last edited by a moderator: Apr 29, 2017
    Still some confusion here. COA key has nothing to do with the OEM:SLP key/certs. They are a fallback way if motherboard got changed on a OEM machine and is not bound to any BIOS/UEFI tables. Afaik they need phone activation. No cert needed for the COA.
     
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  4. mrjayviper

    mrjayviper MDL Novice

    Sep 7, 2013
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    #4 mrjayviper, Apr 16, 2017
    Last edited by a moderator: Apr 29, 2017
    (OP)
    1. If I were to use a COA from eBay, do I still need to mod my BIOS so it has SLIC 2.1?

    2. When do I need to use oem.xrm-ms?

    Thanks again
     
  5. s1ave77

    s1ave77 MDL Guide Dog/Dev

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    #5 s1ave77, Apr 16, 2017
    Last edited by a moderator: Apr 29, 2017
    #1. As said, COA keys are it's own License Channel and do not depend on SLIC tables or certs.

    #2. In case SLIC table is present (by either BIOS mod or Emulation through Daz Loader). Then it needs the OEM:SLP key and a cert.
     
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  6. mrjayviper

    mrjayviper MDL Novice

    Sep 7, 2013
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    Last question please.

    Same answer if the COA is from an OEM machine? Thanks again
     
  7. submix8c

    submix8c MDL Novice

    Feb 2, 2010
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    COA can be used on one machine and one machine only. If COA key has been used on a machine and activated it's forever tied to that machine. If it's been used and installed on another machine using same key, good luck explaining to M$ when it doesn't activate.
     
  8. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    oem generic (not sticker under laptop) key say dell or hp or toshiba and so.. are same one used for activating with cert for thousands of pcs.. unlike sticker that is for the user 1 pc
     
  9. s1ave77

    s1ave77 MDL Guide Dog/Dev

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    Same answer.
     
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  10. RB2

    RB2 MDL Novice

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    I bought a Win 7 key from Ebay a couple of days ago.
    Bought from a 'reliable' seller with lots of feedback.
    These keys are touted as 'lifetime' in duration.
    Did some research, may be the case they'll last for 3 months before they expire
    or the COA police at M.S. disable it.
    Certainly these Win 7 keys are good enough for an immediate free upgrade to Win 10, which
    was my reason for buying it. They go for around $5 bucks, typical seller is listed as from Great Britain.


    Upgrading from Win 7 to Win 10 is still free, just get the 'download tool' from the ms site.
     
  11. Threat

    Threat Lord of the Files

    Feb 23, 2014
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    Keys don't expire ...

    They could get blocked which will prevent future use. Still would not touch one with a barge pole.

    Often they are 'stolen' MAK keys really...

     
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  12. RB2

    RB2 MDL Novice

    Jan 16, 2016
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    They 'expire' when they are taken out of the MS database and your system goes from genuiine/actived to not activated.
     
  13. CEW

    CEW MDL Member

    Jan 21, 2011
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  14. Threat

    Threat Lord of the Files

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    That's blocked, not expired. Expired implies data limitation ... blocked can happen at any time (or not at all)
     
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  15. submix8c

    submix8c MDL Novice

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    Indeed. Even XP still activates (with COA sticker key matching the edition or retail FPP/CCP), provided it hasn't been blocked. A lot of misinformation gets spread about keys. "Buying" a key is (no offense) dumb (and, yeah, probably MAK "leaked" and "blocked"). And, no, you don't need to "buy" a key for "downgrading" to Windows10 (more misinformation).
     
  16. RB2

    RB2 MDL Novice

    Jan 16, 2016
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    Just call me blockhead, but I'd watch out if you are Gumby
     
  17. gastoni

    gastoni MDL Novice

    Jan 18, 2015
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    I bought COA's on Ebay before and have never had any problem with them. But that's just my experience.
     
  18. Order_66

    Order_66 MDL Novice

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    I still have a couple of old machines I bought keys for back in 2012 and they're still activated today with no issues.