# System Update Policy

#### Troubleshooting for System update policy

##### **"System update policy with this name already exists in this enterprise"**

Choose a different **Description Name**.

##### **"Windowed update type requires start and end minutes to be set"**

Fill in **Start Minutes** and **End Minutes** (0–1439), or choose another **Update Type**.

##### **"Start and end minutes can only be set if update type is Windowed"**

Clear **Start Minutes** and **End Minutes**, or switch the **Update Type** to **Windowed**.

##### **"Invalid: Start date for month" or "Invalid: End date for month"**

A freeze period date does not exist — check that the day fits the month (months 1–12, days 1–31).

##### **"Freeze period must not exceed 90 days"**

Shorten the freeze period.

##### **"Freeze periods must not overlap" or "Each freeze period must be separated by at least 60 days."**

Adjust the freeze period dates so the periods are apart from each other.

##### **"Cannot delete system update policy because it is used in configuration"**

Remove the policy from every device group that uses it, then delete it again.

##### **Updates install even though a freeze period is active**

Freeze periods require an **Update Type** other than **Unspecified**. Set the type to Automatic, Windowed or Postpone.

##### **Google Play system updates wait for a reboot**

Google Play system updates (Mainline updates) are downloaded automatically but are only installed when the device reboots.