Key: C6DB8-HNDVJ-CQDDX-RDD9G-D3YJP
Description: Win 10 RTM EnterpriseS Volume:MAK
Sub type: [RS5]X21-83247
Remaining: 102
Time: 5/16/2020 2:47:38 AM (GMT+7)

Key: PD8NK-VG228-XWG93-94WWT-V6FXQ
Description: Office19_RTM19_ProPlus2019VL_MAK_AE
Sub type: X21-74163
Remaining: 4018
Time: 4/18/2020 6:08:28 PM (GMT+7)

Key: M6N7K-4MK9D-C6467-PW73F-DJ4W6
Description: Office19_RTM19_ProPlus2019MSDNR_Retail
Sub type: X21-74618
Error code: 0xC004C008
Time: 6/16/2020 10:11:55 AM (GMT+7)

Key: 7GNW4-DY74M-8HJ4X-XTFYH-X77HC
Description: Office16_ProPlusMSDNR_Retail
Sub type: X20-19681
Error code: 0xC004C008
Time: 8/28/2020 1:02:30 PM (GMT+7)

Key: 7GTNK-CJ8YT-CMYKQ-X4KPG-V6DVC
Description: Office16_ProPlusMSDNR_Retail
Sub type: X20-19681
Error code: 0xC004C008
Time: 8/28/2020 1:02:37 PM (GMT+7)

Key: 7HBWD-NCMGP-723TG-MVGPH-7QW92
Description: Office16_ProPlusMSDNR_Retail
Sub type: X20-19681
Error code: 0xC004C008
Time: 8/28/2020 1:02:45 PM (GMT+7)

Key: 7JG79-NV9QV-MFPP7-FWV8M-3GPX2
Description: Office16_ProPlusMSDNR_Retail
Sub type: X20-19681
Error code: 0xC004C008
Time: 8/28/2020 1:07:57 PM (GMT+7)

Key: 7GXN3-2XVP4-RX879-W9WXV-94TK2
Description: Office16_ProPlusMSDNR_Retail
Sub type: X20-19681
Error code: 0xC004C008
Time: 8/28/2020 1:08:05 PM (GMT+7)

Activation by phone or via CIDMS (Get Web)
Key: Key: MNW3G-R64DT-7BKFJ-HWGKG-XQCRK
0xC004C020 - The activation server determined that the Multiple Activation Key has exceeded the limit of activations
=== !!! The product can be activated by phone !!! ===

Key: WRCWK-YNTMP-7FHYM-C382T-2377H
Description: Office16_ProPlusR_Retail
Sub type: X20-00539
Error code: Online key
Time: 9/18/2020 7:09:00 PM (GMT+7)

Key: DNFKH-8DXGH-JRCY8-Q8636-C9XTT
Description: Win 10 RTM Professional Retail
Sub type: [TH]res-v3308
Error code: 0xC004C008
Time: 9/21/2020 2:02:02 PM (GMT+7)

Error code: 0xC004C060
Time: 9/21/2020 2:21:15 PM (GMT+7)

Key: QX8N7-3J8W2-Y3VYH-42CG9-V22KG
Description: Win 10 RTM Professional Retail
Sub type: [TH]res-v3308
Error code: 0xC004C008
Time: 9/21/2020 2:02:11 PM (GMT+7)

Error code: 0xC004C060
Time: 9/21/2020 3:15:59 PM (GMT+7)

@yokub
Keys are published here for free.
If you need to contact me, then look for options

Key: 7CDNK-BJHC2-QD76B-RJK34-QGQ2T
Description: Office19_RTM19_ProPlus2019MSDNR_Retail
Sub type: X21-74618
Error code: 0xC004C008
Time: 11/14/2020 5:17:56 PM (GMT+7)

Key: JNC6C-GXJY2-F4CHM-HVVW3-DV8J6
Description: Office19_RTM19_ProPlus2019MSDNR_Retail
Sub type: X21-74618
Error code: 0xC004C008
Time: 11/17/2020 7:04:24 PM (GMT+7)

Key: 8D3VN-MBQMR-RPWM8-PRXPD-G83VC
Description: Office16_ProPlusMSDNR_Retail
Sub Type: X20-19681
Error Code: 0xC004C008
Time: 10:55:25 27/11/2020 (GMT+7)

Key: 8D8XB-NRQXJ-DBPKH-YWDT8-33W92
Description: Office16_ProPlusMSDNR_Retail
Sub Type: X20-19681
Error Code: 0xC004C008
Time: 10:55:23 27/11/2020 (GMT+7)

Key: KRN4B-XCBHD-6C8CF-FV3JC-PGYQB
Description: Win 10 RTM Professional Volume:MAK
Sub type: [TH]X19-98796
Remaining: 15
Time: 12/18/2020 10:37:00 AM (GMT+7)

Key : 6GPN6-BPQ6Y-KRTGY-QK7HP-6JHQD
Key Status : Valid
Description : Office19_RTM19_ProPlus2019VL_MAK_AE
Edition ID : ProPlus2019Volume
License Type : Volume:MAK
Activ. Count : 389

@sojourner353
Error code: 0xC004C020 - Activation key by phone / Call Skype

Instructions on how to get the CID for offline MAK keys

Hi all.
We have a saying here in Egypt: "Don't give me a fish, but teach me how to catch it".
Here in this self-made video, I made a simple tutorial on how to contact the Microsoft Product Activation Center to get a CID for Windows or Office using an offline VL MAK key; so everyone whether experienced or not can do it himself.

Use Skype to call the UK toll free number (+4408000188354), more faster and less steps than calling the US toll free number (+18887251047)

Here's the video:

https://www.youtube.com/watch?v=H_eHdzBW7uE

Text (Written) conversation:

1. Welcome to the Microsoft Product Activation Center,
   To help improve the quality of our products, services and training --> This call may be recorded or monitored and information collected on this call may be accessed by Microsoft affiliates, substitutes and service providers internationally.
   To consent recording or monitoring of this call press (1), or to continue without recording or monitoring press (2)

• Press (2)

Thank you, this call will not be recorded or monitored.

2. For security purposes, please enter the following number on your phone's touch ten pad: XXX

• Enter the 3 digit security code

Thank you.

3. Welcome to Microsoft Product Activation,
   To activate Windows, press (1)
   To activate Office for Mac, press (2)
   For other Office products, press (3)

• Press (2) in all cases, whether you're activating Windows or Office

4. If you are actual computer with the activation wizard open, press (1)
   Otherwise, press (2)

• Press (1)

5. Okay, now take a look at your screen,
   I'll ask you to tell me the installation ID,
   The installation ID is a long number broken into several groups,
   I'll ask you for one group at a time,
   Please enter the digits in group one.

• Enter the 6 or 7 digits 1st block of your IID

Great, now enter the digits in group two.

• You follow until you enter your entire (9 groups) Installation ID

Got it, thanks. One moment please while I look that up.

6. I was not able to validate your installation ID,
   Please hold while I transfer you to a Microsoft representative.
   Please have the activation window open on your computer screen; so you have your installation ID number handy.
   The representative will need this number to assist you with activating your product.

• Do not panic and wait to be transferred

7. We'd love to learn from your support experience,
   Would you participate in a pre-survey at the end of your call ?
   Please press (1) for YES, or (2) for NO

• Press (2)

After some time (may be short or long or even immediately depending on their availability), you'll be directed the the MS representative to start a live conversation.

Rep: Thank you for calling Microsoft. My name is (Robin). May I know the software you're trying to activate ?
Me : I'm trying to activate Office 2019 for Windows (specify your product just like this example)

Rep: Okay Sir, I'd be happy to assist you Sir. I got your IID automatically through the IVR system, so give me a moment Sir, let me verify here.
(He may ask you again for the 1st block of the IID or rarely the entire IID)
Me : Yeah, okay.

Rep: So in the mean time, I'd like to inform you that in future if you have any inquiries regarding product activation, call back to the same number or visit our website (support.microsoft.com). Okay ?
Me : Okay, thank you very much.

Rep: Welcome Sir. Congratulations, I have successfully generated the confirmation ID for you. Are you ready to enter it now ?
Me : Yeah, please.

• Now he will tell you your 48 digit Confirmation ID block-by-block --> Go ahead and enter this in the Activation Wizard and then press enter.

9. Your product is now activated.

Key: 36NBJ-8JV99-V9YCB-DJJYG-683GT
Description: Win 10 RTM Professional Retail
Sub type: [TH]res-v3308
Error code: 0xC004C008
Time: 1/10/2021 12:01:38 AM (GMT+7)

Key: RNJWT-6KGGW-X9WTY-GHRY4-DJ3GT
Description: Win 10 RTM Professional Retail
Sub Type: [TH]res-v3308
Error Code: 0xC004C008
Time: 12:49:29 20/01/2021 (GMT+7)

Windows 7 SP1 Professional Retail online
PW9YD-WD4TM-MRPH7-BD7Q7-CDDYB

Key: 8RRN9-HB4MR-CMX2K-P3B4X-Y7V26
Description: Win 10 RTM Professional Retail
Sub type: [TH]X19-98845
Error code: 0xC004C008
Time: 2/27/2021 8:52:24 AM (GMT+7)

All online keys Windows 7/8 / 8.1 Retail, OEM, Volume: MAK automatically activate Windows 10 using the digital license method:

Windows 7 Home Basic => Windows 10 Home
Windows 7 Home Premium => Windows 10 Home
Win 8 RTM Core => Windows 10 Home
Win 8.1 RTM Core => Windows 10 Home

Windows 7 Ultimate => Windows 10 Professional
Windows 7 SP1 Ultimate => Windows 10 Professional
Windows 7 Professional => Windows 10 Professional
Windows 7 SP1 Professional => Windows 10 Professional
Win 8 RTM Professional => Windows 10 Professional
Win 8.1 RTM Professional => Windows 10 Professional

Windows 7 All Volume Editions Volume:MAK => Windows 10 Professional
Win 8 RTM Professional;ProfessionalN;Enterprise;EnterpriseN Volume:MAK => Windows 10 Professional
Win 8.1 RTM Professional;ProfessionalN;Enterprise;EnterpriseN Volume:MAK => Windows 10 Professional