SyMenu is not a widely known or established program for Windows. There[SQ]s no common or popular software with that name associated with Windows system utilities or applications. It[SQ]s possible :

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It[SQ]s a very niche or obscure program:

Some specialized software might have this name, but it wouldn[SQ]t be readily found through general searches.
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It[SQ]s a typo:

You might have misremembered the name. Try to recall any other details about the program, like its purpose or where you encountered it.
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It[SQ]s malware or a potentially unwanted program (PUP):

If you downloaded it from an untrusted source, it[SQ]s crucial to be cautious. Run a scan with a reputable antivirus program.

If you can provide more context about where you encountered "SyMenu" or what it[SQ]s supposed to do, I might be able to give you a more accurate answer.