1, the newly installed computer, the graphics card driver or setting error, the software accidentally fell out, reinstall or upgrade the graphics card driver to solve;

2. The cracked software was installed, and part of the cracked information was killed by the software, which made the software unusable, so other versions of the software were replaced to solve it;

3. The system is infected with virus, and a system file is destroyed, which can be repaired by the system installation disk;

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