Windows Embedded Compact（曾被称为Microsoft Windows CE），为微软研发的嵌入式操作系统，可以应用在各种嵌入式系统，或是硬件规格较低的电脑系统（例如很少的内存，较慢的中央处理器等）。微软并未定义CE缩写由来，一般解释则有Compact Edition、Customer Embedded、Consumer Electronics等等。在2008年4月15日举行的嵌入式系统大会上，微软宣布将Windows CE更名为Windows Embedded Compact，与Windows Embedded Enterprise、Windows Embedded Standard和Windows Embedded POSReady组成Windows Embedded系列产品。

Windows Embedded Compact, formerly Windows Embedded CE and Windows CE, is an operating system subfamily developed by Microsoft as part of its Windows Embedded family of products. Unlike Windows Embedded Standard, which is based on Windows NT, Windows Embedded Compact uses an exclusive hybrid kernel. Microsoft licenses Windows CE to original equipment manufacturers (OEMs), who can modify and create their own user interfaces and experiences, with Windows CE providing the technical foundation to do so.