When installing cad20 17, it will be based on the current system clock or

1. Please check whether your computer clock is set correctly, and if not, please reset it.

2. Check whether there is enough space to install CAD 20 17. If not, please make sure to free up disk space to install CAD 20 17.

3. Check whether the signature file is valid. If not, please download and install a valid signature file again.

Please make sure that the latest Microsoft Visual c++ redistributable software is installed on your computer, which is a necessary component of CAD 20 17.

5. If the problem still exists, please refer to the installation guide of CAD 20 17 or contact the technical support personnel of CAD 20 17 for more help.

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