Merge pull request #8546 from zdvorak/patch-44

Update restart-frequency.md

Author: mestew

memdocs/analytics/restart-frequency.md

@@ -46,21 +46,21 @@ The difference between **Shutdown (no update)** and **Restart (no update)** is t
 
 ## Device performance tab
 
-In the device performance tab, two default columns have been added so you can review the total number of restarts and the number of Stop errors (blue screen errors) each device had in the last 14 days. Sort by these columns to find problematic devices. You can also use this tab to review the total number of devices that have sent restart records. For example, the screenshot below has 31 records, meaning 31 devices have sent restart data.
+In the device performance tab, two default columns have been added so you can review the total number of restarts and the number of Stop errors (blue screen errors) each device had in the last 30 days. Sort by these columns to find problematic devices. You can also use this tab to review the total number of devices that have sent restart records. For example, the screenshot below has 31 records, meaning 31 devices have sent restart data.
 
 ## Model performance tab
 
-In the model performance tab, two default columns have been added so you can review both the average number of restarts and the average number of Stop errors (blue screen errors) per model over the last 14 days. Sort by these columns to find problematic device models. Only models with at least 10 devices are shown to ensure the averages are done across enough devices to be meaningful.
+In the model performance tab, two default columns have been added so you can review both the average number of restarts and the average number of Stop errors (blue screen errors) per model over the last 30 days. Sort by these columns to find problematic device models. Only models with at least 10 devices are shown to ensure the averages are done across enough devices to be meaningful.
 
 ## Restart frequency tab
 
-The new restart frequency tab shows aggregates of restart frequency counts for each of the [restart categories](#restart-categories) over the last 14 days. For each restart category, the following information is displayed:
+The new restart frequency tab shows aggregates of restart frequency counts for each of the [restart categories](#restart-categories) over the last 30 days. For each restart category, the following information is displayed:
 
 - Number of devices that have had at least one restart in that category
 - The average number of restarts per device across all devices, to understand the total impact.
   - This average is all devices, not just the ones that had at least one restart in the category.
 
-The trend chart indicates how the rolling 14-day average changes over time. If there is a regression you'll be able to see it and identify when it started. Clicking through the metrics table will take you to the [**Device performance** tab](#device-performance-tab), sorted by number of restarts, so you can quickly identify the devices with the most restarts.
+The trend chart indicates how the rolling 30-day average changes over time. If there is a regression you'll be able to see it and identify when it started. Clicking through the metrics table will take you to the [**Device performance** tab](#device-performance-tab), sorted by number of restarts, so you can quickly identify the devices with the most restarts.
 
 :::image type="content" source="media/restart-frequency-tab.png" alt-text="Restart frequency tab under Startup Performance" lightbox="media/restart-frequency-tab.png":::
 
@@ -76,13 +76,13 @@ The **OS restart history** table has the following information:
 
 :::image type="content" source="media/device-page-os-restart-history.png" alt-text="OS restart history under the Device page" lightbox="media/device-page-os-restart-history.png":::
 
-The **OS restart history** table is truncated to the 10 most recent restarts that occurred in the last 2 months. The table is low latency, so new restarts typically show up here before they appear in the daily aggregates shown in the **Device performance** tab.
+The **OS restart history** table is truncated to the 10 most recent restarts that occurred in the last 30 days. The table is low latency, so new restarts typically show up here before they appear in the daily aggregates shown in the **Device performance** tab.
 
 ## Known issues
 
 - The count of restarts in a device's restart history in the [**Devices page**](#devices-page) may not match the count shown in the **Device performance** tab. This is by design. The differences are: 
-   - The aggregates in the [**Device performance** tab](#device-performance-tab) are computed daily to show counts for the last 14 days
-	- The restart history in the [**Devices page**](#devices-page) is truncated to the 10 most recent restarts and goes back up to the last 2 months. This page also has low latency, so new restarts will typically show up here before they make their way into the daily aggregates shown in the **Device performance** tab. The [**Device performance** tab](#device-performance-tab) doesn't have that truncation and goes back for the last 14 days.
+   - The aggregates in the [**Device performance** tab](#device-performance-tab) are computed daily to show counts for the last 30 days
+   - The restart history in the [**Devices page**](#devices-page) is truncated to the 10 most recent restarts
 
 - Currently, there isn't an aggregation of Stop errors (blue screen errors) by *driver* or *failure bucket ID*.