diff --git a/UefiCpuPkg/Library/MpInitLib/Microcode.c b/UefiCpuPkg/Library/MpInitLib/Microcode.c
index efda143e67..d84344c6f5 100644
--- a/UefiCpuPkg/Library/MpInitLib/Microcode.c
+++ b/UefiCpuPkg/Library/MpInitLib/Microcode.c
@@ -63,6 +63,11 @@ MicrocodeDetect (
   UINT32                                  ProcessorFlags;
   UINT32                                  ThreadId;
 
+  //
+  // set ProcessorFlags to suppress incorrect compiler/analyzer warnings
+  //
+  ProcessorFlags = 0;
+
   if (CpuMpData->MicrocodePatchRegionSize == 0) {
     //
     // There is no microcode patches