This cryptic device refuses to install drivers automatically, and Windows Update offers no solution. The detailed error on the "General" tab often reads: "The drivers for this device are not installed. (Code 28)" or "No drivers are installed for this device."
In Windows 7, this driver is sometimes not included by default or is missing from standard chipset packages. You can resolve it using these methods: 1. Manual Update via Device Manager
: Manages scheduled wake-up events (e.g., Windows updates or backups) Acpi Acpi000e Windows 7 Driver
If you are reading this, you have likely just opened on a Windows 7 PC—perhaps an older laptop, a custom-built desktop, or a legacy workstation—and noticed a troubling sight. Under the "Other devices" section, a small yellow triangle with an exclamation mark sits next to an entry labeled:
page for dedicated ACPI driver packages for ThinkCentre or ThinkStation models. General Fix : Sometimes installing the latest Intel Chipset Driver You can resolve it using these methods: 1
: Often appears as an "Unknown Device" in Windows 7 Device Manager 📥 How to Install the Driver
If you have a driver folder (often from a laptop manufacturer like HP or Lenovo): Open . Right-click the Unknown Device ( ACPI000E ). Select Update Driver Software . Choose Browse my computer for driver software . General Fix : Sometimes installing the latest Intel
In modern computers, particularly those designed for enterprise environments, the standard Real-Time Clock (RTC) is supplemented by a more advanced Time and Alarm Device. While the standard RTC keeps track of time while the computer is off, the Time and Alarm Device (ACPI000E) provides an interface for setting alarms and wake timers that can function even in low-power states (like Modern Standby or Sleep).
Most modern motherboards from manufacturers like , Gigabyte , HP , and Lenovo require a specific chipset or "Wake Alarm" driver to resolve this error. 1. Use the Manufacturer's Support Site
Navigate to the folder where you unzipped the driver files and ensure "Include subfolders" is checked. If that doesn't work, try selecting Let me pick from a list of device drivers on my computer , then look under Standard System Devices Microsoft S3 Device ACPI Wake Alarm HP Support Community 3. Troubleshoot "Ghost" Waking