# 🪟 Windows 10 / 11 Professional — MAK Key With 866 Activations Left

**URL:** <https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691>\
**Category:** Give-Away and Freebies\
**Tags:** community-share\
**Created:** [August 11, 2026, 7:48pm UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691 "2026-08-11T19:48:12Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![Aloulou\_ESSAYEH](https://onehack.st/user_avatar/onehack.st/aloulou_essayeh/32/165849_2.png) [@Aloulou\_ESSAYEH](https://onehack.st/u/Aloulou_ESSAYEH)\
**Post date:** [August 11, 2026, 7:48pm UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/1 "2026-08-11T19:48:12Z")

</div>

### 🪟 Windows 10 / 11 Professional — MAK key with 866 activations left

 ![Windows 10-11 Professional key](https://onehack.st/uploads/default/original/3X/d/e/deb14d54e04f8de9e45aff657034885b6f03de98.png)

```auto
87XH3-VN9KP-TKBW8-G2BWH-RGDGY

```

`MAKCount: 866` — a **Multiple Activation Key** , so it isn’t one-per-person. That number is how many machines it will still activate and it only counts down.

**Admin Command Prompt:**

```auto
slmgr /ipk 87XH3-VN9KP-TKBW8-G2BWH-RGDGY
slmgr /ato

```

Then `slmgr /xpr` to confirm it’s permanent. Works on **Pro** — on a Home install the key upgrades the edition first, then activates, and the machine reboots on the way through.

_866 left. It was 867._

---

<div class="post-metadata">

**Author:** ![princekv003](https://onehack.st/user_avatar/onehack.st/princekv003/32/166480_2.png) [@princekv003](https://onehack.st/u/princekv003)\
**Post date:** [August 12, 2026, 1:41am UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/2 "2026-08-12T01:41:00Z")

</div>

> [@Aloulou\_ESSAYEH](#):
>
> `87XH3-VN9KP-TKBW8-G2BWH-RGDGY`

 ![Screenshot 2026-08-12 070940](https://onehack.st/uploads/default/original/3X/7/1/71871c809ac6f3d8f2683aebcaf9e88692dc12ee.png)  
thx bro 😭

---

<div class="post-metadata">

**Author:** ![cairo\_benzo](https://onehack.st/user_avatar/onehack.st/cairo_benzo/32/134018_2.png) [@cairo\_benzo](https://onehack.st/u/cairo_benzo)\
**Post date:** [August 12, 2026, 4:12am UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/3 "2026-08-12T04:12:00Z")

</div>

![image](https://onehack.st/uploads/default/original/3X/3/d/3daa0a9542f3c0ab0975976492a05d2d86299179.png)

it’s showing this?

---

<div class="post-metadata">

**Author:** ![Aloulou\_ESSAYEH](https://onehack.st/user_avatar/onehack.st/aloulou_essayeh/32/165849_2.png) [@Aloulou\_ESSAYEH](https://onehack.st/u/Aloulou_ESSAYEH)\
**Post date:** [August 12, 2026, 12:09pm UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/4 "2026-08-12T12:09:49Z")

</div>

**Windows 10/11 Pro** key, it will not activate Home.

---

<div class="post-metadata">

**Author:** ![cairo\_benzo](https://onehack.st/user_avatar/onehack.st/cairo_benzo/32/134018_2.png) [@cairo\_benzo](https://onehack.st/u/cairo_benzo)\
**Post date:** [August 12, 2026, 5:37pm UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/5 "2026-08-12T17:37:04Z")

</div>

> [@Aloulou\_ESSAYEH](#):
>
> **10/11 Pro** key, it will not activate Home.

how to upgrade form home to pro?  
and will it work even after the reset process?

---

<div class="post-metadata">

**Author:** ![teodor11](https://onehack.st/user_avatar/onehack.st/teodor11/32/158489_2.png) [@teodor11](https://onehack.st/u/teodor11)\
**Post date:** [August 13, 2026, 9:53am UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/6 "2026-08-13T09:53:50Z")

</div>

> [@cairo\_benzo](#):
>
> upgrade form home to pro

Open the Start menu and select Settings (the gear icon).  
Go to Update & Security, then click on Activation.  
Select Change product key under the edition upgrade section.  
Type your 25-character Pro product key and click Next.  
Select Start to confirm and let your PC finish the upgrade and restart.

---

<div class="post-metadata">

**Author:** ![cairo\_benzo](https://onehack.st/user_avatar/onehack.st/cairo_benzo/32/134018_2.png) [@cairo\_benzo](https://onehack.st/u/cairo_benzo)\
**Post date:** [August 13, 2026, 4:23pm UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/7 "2026-08-13T16:23:18Z")

</div>

> [@Aloulou\_ESSAYEH](#):
>
> `87XH3-VN9KP-TKBW8-G2BWH-RGDGY`

not working actually tried and tested it

---

<div class="post-metadata">

**Author:** ![Arfan\_Evan](https://onehack.st/user_avatar/onehack.st/arfan_evan/32/177793_2.png) [@Arfan\_Evan](https://onehack.st/u/Arfan_Evan)\
**Post date:** [August 13, 2026, 5:00pm UTC](https://onehack.st/t/windows-10-11-professional-mak-key-with-866-activations-left/324691/8 "2026-08-13T17:00:59Z")

</div>

If you want to activate it that bad use massgrave, its simple to use…

> **[Microsoft Activation Scripts | MAS](https://massgrave.dev/)**
>
> An open-source Windows and Office activator featuring HWID, Ohook, TSforge, and Online KMS activation methods, along with advanced troubleshooting.