diff --git a/collector/logical_disk.go b/collector/logical_disk.go
index 2f9d8eea..cf463d3c 100644
--- a/collector/logical_disk.go
+++ b/collector/logical_disk.go
@@ -103,14 +103,14 @@ func NewLogicalDiskCollector() (Collector, error) {
 
 		FreeSpace: prometheus.NewDesc(
 			prometheus.BuildFQName(Namespace, subsystem, "free_bytes"),
-			"Free space in bytes (LogicalDisk.PercentFreeSpace)",
+			"Free space in bytes, updates every 10-15 min (LogicalDisk.PercentFreeSpace)",
 			[]string{"volume"},
 			nil,
 		),
 
 		TotalSpace: prometheus.NewDesc(
 			prometheus.BuildFQName(Namespace, subsystem, "size_bytes"),
-			"Total space in bytes (LogicalDisk.PercentFreeSpace_Base)",
+			"Total space in bytes, updates every 10-15 min (LogicalDisk.PercentFreeSpace_Base)",
 			[]string{"volume"},
 			nil,
 		),
diff --git a/docs/collector.logical_disk.md b/docs/collector.logical_disk.md
index 489af4b2..479ee2b2 100644
--- a/docs/collector.logical_disk.md
+++ b/docs/collector.logical_disk.md
@@ -30,11 +30,15 @@ Name | Description | Type | Labels
 `writes_total` | Rate of write operations on the disk  | counter | `volume`
 `read_seconds_total` | Seconds the disk was busy servicing read requests | counter | `volume`
 `write_seconds_total` | Seconds the disk was busy servicing write requests | counter | `volume`
-`free_bytes` | Unused space of the disk in bytes | gauge | `volume`
-`size_bytes` | Total size of the disk in bytes | gauge | `volume`
+`free_bytes` | Unused space of the disk in bytes (not real time, updates every 10-15 min) | gauge | `volume`
+`size_bytes` | Total size of the disk in bytes (not real time, updates every 10-15 min) | gauge | `volume`
 `idle_seconds_total` | Seconds the disk was idle (not servicing read/write requests) | counter | `volume`
 `split_ios_total` | Number of I/Os to the disk split into multiple I/Os | counter | `volume`
 
+### Warning about size metrics
+The `free_bytes` and `size_bytes` metrics are not updated in real time and might have a delay of 10-15min.
+This is the same behavior as the windows performance counters.
+
 ### Example metric
 Query the rate of write operations to a disk
 ```
diff --git a/tools/e2e-output.txt b/tools/e2e-output.txt
index 305f599f..c36e5e7e 100644
--- a/tools/e2e-output.txt
+++ b/tools/e2e-output.txt
@@ -119,7 +119,7 @@ windows_exporter_collector_timeout{collector="system"} 0
 windows_exporter_collector_timeout{collector="textfile"} 0
 # HELP windows_exporter_perflib_snapshot_duration_seconds Duration of perflib snapshot capture
 # TYPE windows_exporter_perflib_snapshot_duration_seconds gauge
-# HELP windows_logical_disk_free_bytes Free space in bytes (LogicalDisk.PercentFreeSpace)
+# HELP windows_logical_disk_free_bytes Free space in bytes, updates every 10-15 min (LogicalDisk.PercentFreeSpace)
 # TYPE windows_logical_disk_free_bytes gauge
 # HELP windows_logical_disk_idle_seconds_total Seconds that the disk was idle (LogicalDisk.PercentIdleTime)
 # TYPE windows_logical_disk_idle_seconds_total counter
@@ -135,7 +135,7 @@ windows_exporter_collector_timeout{collector="textfile"} 0
 # TYPE windows_logical_disk_reads_total counter
 # HELP windows_logical_disk_requests_queued The number of requests queued to the disk (LogicalDisk.CurrentDiskQueueLength)
 # TYPE windows_logical_disk_requests_queued gauge
-# HELP windows_logical_disk_size_bytes Total space in bytes (LogicalDisk.PercentFreeSpace_Base)
+# HELP windows_logical_disk_size_bytes Total space in bytes, updates every 10-15 min (LogicalDisk.PercentFreeSpace_Base)
 # TYPE windows_logical_disk_size_bytes gauge
 # HELP windows_logical_disk_split_ios_total The number of I/Os to the disk were split into multiple I/Os (LogicalDisk.SplitIOPerSec)
 # TYPE windows_logical_disk_split_ios_total counter