作为微软最受欢迎的的系统之一，Win7已经发布13年了，主流支持及扩展支持都已经在2020年初到期了，不过微软也不是完全不管Win7更新了，今天又发布了一个补丁KB5011552，但需要ESU付费才能更新。
2月的第二个周二是微软的补丁更新日，这次微软给Win7及Win8.1都带来了新的安全更新，编号分别是KB5011552、KB5011564，解决的问题就不详细介绍了，主要是一些系统错误及安全更新，普通人几乎不可能遇到，对企业级用户来说可能还有意义。win7系统专题
As one of Microsoft's most popular systems, Win7 has been released for 13 years, and mainstream support and extended support have expired in early 2020. However, Microsoft does not completely ignore Win7 updates, and today released a patch KB5011552, But need to pay ESU to update.
The second Tuesday in February is Microsoft's patch update day. This time, Microsoft has brought new security updates to both Win7 and Win8.1. The numbers are KB5011552 and KB5011564 respectively. The problems solved will not be introduced in detail, mainly: Some system errors and security updates are almost impossible for ordinary people to encounter, and may still make sense for enterprise users.
For Win7 users, this patch upgrade is a little more troublesome, because Microsoft's support has long expired, and now it is ESU (Extended Security Update) support for enterprise users, which is a paid service, and you can spend money to update the patch .
The ESU service is only for 3 years. Win7's ESU can support up to January 2023. Not only is it charged, but the price will increase every year. In 2021, it will rise to $50 per unit, and it will rise to $100 in 2022.
对于Win7用户来说，这次的补丁升级就麻烦一点，因为微软的支持早就过期了，现在是针对企业级用户的ESU（Extended Security Update）支持，而这是付费服务，花钱才能更新补丁。
ESU服务也只有3年时间，Win7的ESU最多能支持到2023年1月份，不仅收费，每年都要涨价，2021年每台50美元，2022年要涨到100美元。
