     XCTAssert(ENOPOLICY == Errno.noSuchPolicy.rawValue)
 #endif
 
+#if !os(Windows)
     XCTAssert(ENOTRECOVERABLE == Errno.notRecoverable.rawValue)
     XCTAssert(EOWNERDEAD == Errno.previousOwnerDied.rawValue)
+#endif
 
 #if os(macOS) || os(iOS) || os(watchOS) || os(tvOS)
     XCTAssert(EQFULL == Errno.outputQueueFull.rawValue)

    XCTAssert(ENOMEM == Errno.noMemory.rawValue)
    XCTAssert(EACCES == Errno.permissionDenied.rawValue)
    XCTAssert(EFAULT == Errno.badAddress.rawValue)
    XCTAssert(ENOTBLK == Errno.notBlockDevice.rawValue)
    XCTAssert(EBUSY == Errno.resourceBusy.rawValue)
    XCTAssert(EEXIST == Errno.fileExists.rawValue)
    XCTAssert(EXDEV == Errno.improperLink.rawValue)

    XCTAssert(ENOSTR == Errno.notStream.rawValue)
    XCTAssert(EPROTO == Errno.protocolError.rawValue)
    XCTAssert(ETIME == Errno.timeout.rawValue)
#endif
    XCTAssert(EOPNOTSUPP == Errno.notSupportedOnSocket.rawValue)

    // From headers but not man page
