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A hàng hóa key is a 25-digit number that"s used to activate Windows 8/8.1. Activation helps verify that Windows hasn"t been used on more PCs than the Microsoft Software License Terms allow.

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Your sản phẩm key should be in the box that the Windows DVD came in, or in an gmail that shows that you bought Windows.It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
While performing a clean or tăng cấp install of a retail copy of Windows 8/8.1
or Windows 8/8.1 Professional, Microsoft requires that you enter the product key for it during installation & will be automatically activated when online.All OEM PCs that come with Windows 8/8.1 or Windows RT/RT 8.1 preinstalled will activate automatically when they are connected online to lớn the mạng internet. The product key is embedded in the UEFI/BIOS firmware of OEM PCs with Windows 8 preinstalled, and is entered automatically for activation.When installing Windows 8/8.1 Enterprise, it doesn"t ask for a sản phẩm key number và isn"t activated automatically since Microsoft allows you to use a không tính tiền 90-day evaluation of Windows 8 Enterprise or Windows 8.1 Enterprise Preview before needing to purchase a license (sản phẩm key). Windows 8 Enterprise can be activated online by changing the hàng hóa key number to lớn the one you purchased with the Windows 8 Enterprise.
However, sometimes after you change hardware (ex: motherboard), install the same Windows 8 on a new replacement computer, or some other activation error, Windows 8 may become no longer activated. If you are unable khổng lồ activate Windows 8 online as usual, then you may need lớn activate Windows 8 by phone instead.This tutorial will show you how to activate Windows 8 and 8.1 by phone
when Windows 8 or 8.1 is already installed & you are unable to lớn activate online with the sản phẩm key.You must be signed in as an administrator to be able to lớn activate Windows 8 by phone.
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Note
EXAMPLE: Watermark that indicates Windows 8 is not activated
NOTE: This watermark will be at the bottom right corner of your desktop above sầu the taskbar notification area.
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OPTION ONE
1.
Do step 2, 3, 4, 5, or 6 below for what you would like or able khổng lồ vị.2. Press the Windows :winkey: + R lớn open the Run dialog, type slui.exe pháo 4, press Enter, & go to lớn step 7 below.3. mở cửa an elevated comm& prompt, type slui.exe cộ 4, press Enter, and go lớn step 7 below.4. Open the nguồn Users Tasks menu, click/tap on System, & go to lớn step 5A below.5. xuất hiện the Control Panel (icons view), and click/tap on the System inhỏ.A) Click/tap on View details in Windows Activation at the bottom. (see screenshot below)
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B) Click/tap on either Activate by phone
(if available) at top or Contact Microsoft Customer Support, & go lớn step 7 below. (see screenshots below)NOTE: The options you may have available are based on the activation error you have sầu.
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6.
Open PC settings, click/tap on Activate Windows on the left side, click/tap on Liên hệ customer tư vấn for help on the right side, & go to lớn step 7 below. (see screenshot below)NOTE: Activate Windows will only be available in PC settings if Windows 8 or Windows RT is currently not activated.
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7.
Click/tap on the drop down thực đơn, select the nearest location to lớn you for a toll không tính tiền number lớn điện thoại tư vấn, then click/tap on Next. (see screenshot below)
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If prompted by UAC, then click/tap on Yes.9. Follow the instructions on the screen & phone. (see screenshot below)A) (step 1) gọi the toll không lấy phí activation "Microsoft activation phone number" from step 7 nearest your location.B) (step 2) Enter the ID numbers on your phone keypad when asked lớn vị so over the phone.NOTE: These numbers are generated by your PC & provide information about your product key.C) (step 3) Enter the confirmation ID numbers given khổng lồ you over the phone into the "Windows Activation" wizard.D) When finished, click/tap on Activate.

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10.
If activation was successful, then you are done.11. If activation failed, then you will be told that activation cannot proceed. DO NOT hang up. Wait to lớn be automatically transferred khổng lồ a Microsoft Activation Team operator that will go through these steps again khổng lồ help you activate your copy of Window 8.
OPTION TWO
1.
Do step 2, 3, 4, 5, or 6 below for what you would like or able lớn vì.2. Press the Windows :winkey: + R to open the Rusluisn dialog, type slui.exe pháo 4, press Enter, và go lớn step 7 below.3. Open an elevated command prompt, type slui.exe pháo 4, press Enter, & go to lớn step 7 below.4. xuất hiện the Power Users Tasks menu, click/tap on System, và go lớn step 5A below.5. Open the Control Panel (icons view), and click/tap on the System icon.A) Click/tap on Activate Windows at the bottom right corner under Windows activation, & go lớn step 7 below. (see screenshot below)
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xuất hiện PC settings, click/tap on Activate Windows on the left side. (see screenshot below)
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A) On the right side, click/tap on Activate by phone
, & go to step 7 below. (see screenshot below)
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7.
Click/tap on the drop down menu, select your country or region for a toll không tính phí "Microsoft activation phone number" lớn điện thoại tư vấn for that location, then click/tap on Next. (see screenshot below)
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8.
If prompted by UAC, then click/tap on Yes.9. Hotline the toll free activation phone number from step 7 nearest your location. (see screenshot below)
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10.
Enter or provide the installation ID numbers on your phone keypad when asked to lớn bởi vì so over the phone, and click/tap on Enter confirmation ID when ready. (see screenshot above)NOTE: These numbers are generated by your PC và provide information about your sản phẩm key. 11. Enter the confirmation ID numbers given to lớn you over the phone, và click/tap on Activate Windows when finished. (see screenshot below)
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If activation was successful, then you are done.13. If activation failed, then you will be told that activation cannot proceed. DO NOT hang up. Wait to lớn be automatically transferred lớn a Microsoft Activation Team operator that will go through these steps again to help you activate your copy of Window 8.1.That"s it,Shawn