Why can’t CAD drawing files be opened by dragging? How to solve it?

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　　The main reason why CAD drawing files cannot be opened by dragging is that, with the continuous updates to the Windows operating system, strict controls are imposed on users’ permission levels for security reasons. To resolve the issue of being unable to open DWG files by dragging them into the CAD window, it is necessary to address the system permissions issue. 　　CAD drawing files cannot be dragged to open in the testing environment: the four operating systems are Win10 32, Win10 64, Win7 32, and Win7 64. 　　To open a CAD drawing file without dragging it: Press the Win+R key combination to open the Run dialog, type gpedit.msc, and press Enter to access the Local Group Policy Editor ； 　　　　Open \"Computer Configuration\" → Windows Settings → Security Settings → Local Policies → Security Options: User Account Control: Run all administrators in Administrator-approved mode, and set it to Disabled ； User Account Control: Administrator approval mode for built-in administrator accounts, set to enabled ； 　　　　Reboot the computer. 　　Follow the steps above: In the four operating system environments of Win10 32, Win10 64, Win7 32, and Win7 64, CAD drawing files can be successfully opened by dragging them into the CAD software’s command line. This test passed on all the four operating systems mentioned above, and the issue has been resolved. 　　Why can’t I open a CAD drawing file when I drag it into the CAD software’s command line? For a while, I thought it might be that the software itself did not support this operation, until I later saw others successfully carry out this task. So how exactly is this problem solved? That is the solution.