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![How to Fix Error 1721 | eHow](https://www.iarticlesnet.com/pub/img/site/s_28.jpeg)
How to Fix Error 1721 | eHow
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日期:2024-07-14
Error 1721 is specific to Windows XP and Windows Vista and often occurs when you're trying to uninstall a program from "Add or Remove Programs." The error message reads like this: "Error 1721. There is a problem with this Windows Installer package. A prog...看更多