I saw this article on the Internet https://www.jianshu.com/p/21f4bb8b5502, Try it on your own , The problem of loss is solved .
Tips 【 Lost in computer api-ms-win-crt-runtime-l1-1-0.dll】, Because of the lack of Microsoft Visual C++ 2015 Redistributable Components , This is in PCS7 It will be installed automatically , Some systems need to be patched again Windows8.1-KB2999226-x64.msu To take effect .
According to the online version, you will be prompted when installing 【 This update does not apply to your computer 】, Here you need to install another 3 A patch KB2939087、KB2975061、KB2919355.
1、 install KB2939087, Follow the prompts to restart .
2、 Install in sequence KB2939087, Install again KB2919355, Follow the prompts to restart .
3、 Finally, install the KB2999226, Follow the prompts to restart .
Try again after power on, there will be no mistake .