windows 10 pro upgrade key free

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What should I do if the black screen keeps rotating after win 11 system starts up?

1. If you cannot log out or open this page, you need to restart the computer with the power button. 2. After the computer restarts several times, it will enter the system repair page and click "Advanced Options". 3. Click to enter "Troubleshooting". 4. We choose Advanced Options. If we can't get in, we have […]

Win11 activation method

1. After entering the win11 system, click activation to enter the activation interface of win11; 2. Then click change product key below, and then click "I recently changed the hardware of this device"; 3. Selecting a digital rights device for authorization transfer shows that VMware INC is authorized by the virtual machine, as shown in […]

Windows 10 system activation tutorial

1. Press the " right mouse button " on the blank space of the desktop , and then click " Personalize " ; as shown in the figure: 2. Click " Home (or Settings) " in the upper left corner in the pop-up window ; as shown in the figure: 3. Click " Update and […]

How to query the system version tutorial (applicable to win7 win8 win10 win11)

1. press the "win key" + "R key" on the keyboard; As shown in the figure: Warm tips: the "win" key of apple computer is the "command" key; "Win" key of some notebooks is "start" key. 2. enter "msinfo32" in the pop-up window, and then click "OK"; As shown in the figure: 3. you can […]

How to uninstall the Office 2010 product key?

Firstly, you need to know the installation path of office, such as C:\Program Files\Microsoft Office\Office14 Run cmd with administrator privileges Entry code, and press Enter key cd "C:\Program Files\Microsoft Office\Office14" Enter the Office14, and entry code. cscript ospp.vbs /dstatus Get the last 5 number of product key. Then entry the follow code to uninstall the […]

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