Fix performance counter values

CHANGELOG.next.asciidoc

@@ -171,6 +171,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Fix NPEs / resource leaks when executing config checks. {pull}11165[11165]
 - Fix duplicated IPs on `mode: all` monitors. {pull}12458[12458]
 - Fix integer comparison on JSON responses. {pull}13348[13348]
+- Fix performance counter values for windows/perfmon metricset.{issue}14036[14036] {pull}14039[14039]
 
 *Journalbeat*
 

metricbeat/module/windows/perfmon/reader.go

@@ -124,16 +124,14 @@ func (r *Reader) RefreshCounterPaths() error {
 	if err != nil {
 		return errors.Wrap(err, "failed removing unused counter values")
 	}
-	// Some counters, such as rate counters, require two counter values in order to compute a displayable value. In this case we must call PdhCollectQueryData twice before calling PdhGetFormattedCounterValue.
-	// For more information, see Collecting Performance Data (https://docs.microsoft.com/en-us/windows/desktop/PerfCtrs/collecting-performance-data).
-	if err = r.query.CollectData(); err != nil {
-		return errors.Wrap(err, "failed querying counter values")
-	}
+
 	return nil
 }
 
 // Read executes a query and returns those values in an event.
 func (r *Reader) Read() ([]mb.Event, error) {
+	// Some counters, such as rate counters, require two counter values in order to compute a displayable value. In this case we must call PdhCollectQueryData twice before calling PdhGetFormattedCounterValue.
+	// For more information, see Collecting Performance Data (https://docs.microsoft.com/en-us/windows/desktop/PerfCtrs/collecting-performance-data).
 	if err := r.query.CollectData(); err != nil {
 		return nil, errors.Wrap(err, "failed querying counter values")
 	}