Win7 can upgrade win10 for free? Free upgrade view method

Recently, Microsoft officially released the Windows 10 consumer preview version, and announced that Win7 and Win8 users can upgrade for free within one year of Win10 release. However, many friends do not know, Win7/Win8 free upgrade Win10 is also limited, not all Win7 users can upgrade for free, then how to see whether Win7 can upgrade Win10 free of charge, the following Pepsi network small series teach you how to view.

First, open the run command box, Win7 users can directly open the "running" in the start menu of the lower left corner, or you can directly use the combination shortcut: Win + R to open the run command box, as follows The figure shows.

Second, after opening the run command box, type the command: [slmgr.vbs /dlv], press the Enter key to finish, as shown below.

Three, a pop-up called "Windows Script Host dialog box", here we mainly look at the description of the end of the third line, as shown in the following diagram.

There are three kinds of Windows Script Host descriptions that you can see: Retail, OEM, VOLUME, only Win7 (Retail Key) and OEM (OEM Key) can be activated by Win7. Free upgrade Win10 system;

When VOLUME (volume activation) authorization mode is activated, Win7 does not enjoy the free upgrade of Win10.

Retail, OEM, VOLUME are three activation methods of Win7, in which Retail retail key and OEMO manufacturer key are genuine activation mode, and VOLUME volume activated Win7 is likely to be pirated, so do not enjoy free upgrade This method is also suitable for Win8/8.1 system, let's try it.

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