How to check if the computer can upgrade win10?

for free. Method 1:
1. First, use the “WIN+R” button to open the “Run” dialog box. Or in the lower left corner & ldquo; Menu & rdquo;--“All Programs --&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&" Dli”, OK.

3. The above commands are displayed: operating system version, partial product key, license status. As shown in the figure, you can see that the information of the computer is OEM in the “Description” and it can be upgraded free of charge. In the computer authorization method, the OEM represents the retail key, the Retail represents the retail key, and the VOLUME represents the volume authorization key. If it is VOLUME, you can't upgrade for free.

Method 2:
1. In addition, check the system information in more detail and repeat step 1. Enter “slmgr.vbs /dlv” in the Run dialog box to confirm.

2, the above command is displayed: the most detailed activation information, including: operating system version, part of the product key, license status, activation ID, installation ID and so on. As shown in the figure, the system version can be viewed in the description.