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After installing Windows 7 64-bit on an HP ENVY Notebook – 15t-ae100 C, the Broadcom BCM43142 802.11 b/g/n Wi-Fi broadcom bcm943142y driver windows 7 64 bit adapter may not be recognized because the appropriate wireless driver is not installed.
The device may appear in Device Manager as an unknown Network Controller with a yellow exclamation mark.
The hardware IDs reported in the original case were:
These IDs identify the Broadcom wireless hardware involved in the issue.
The issue may have one or more of the following symptoms:
Wi-Fi is unavailable after installing Windows 7 64-bit.
Device Manager lists Network Controller with a yellow exclamation mark.
Windows reports that the driver is missing.
Installing an apparently compatible Broadcom driver produces Update.cpp 1205.
Manual driver installation may result in Code 28 – The drivers for this device are not installed.
Windows may report that the requested device registry key does not exist.
Troubleshooting steps
1: Verify the wireless adapter
Press Windows + R.
Type devmgmt.msc and press Enter.
Expand Network adapters.
If the wireless adapter is not listed, look under Other devices.
Locate Network Controller or the Broadcom wireless device with a yellow exclamation mark.
Right-click the device and select Properties.
Select the Details tab.
From the Property drop-down menu, select Hardware Ids.
Confirm that the hardware ID corresponds to the Broadcom device, such as: PCI\VEN_14E4&DEV_4365&SUBSYS_804A103C.
2: Remove an incorrectly installed driver
If a previous Broadcom driver installation has failed:
In Device Manager, right-click the Broadcom wireless device or Network Controller.
Select Uninstall.
If available, select Delete the driver software for this device.
Click OK.
Restart the notebook.
Removing the failed driver before attempting the correct package can prevent Windows from continuing to use an incorrect or incomplete driver installation.
3: Install the correct Broadcom wireless driver
Use the Broadcom wireless LAN driver package listed for the HP ENVY 15-ae000 Notebook PC and Windows 7 rather than relying on a generic Broadcom driver.
you can download this driver sp70888.exe, from driver listed on the HP ENVY 15-ae000 support page worked successfully for the affected hardware.
4: If the installer does not work, manually install the driver
If running the SoftPaq produces Update.cpp 1205 or the installer does not complete:
Run the SoftPaq to extract its contents.
Open Device Manager.
Right-click Network Controller.
Select Update Driver.
Select Browse my computer for driver software.
Browse to the extracted driver folder.
Enable Include subfolders.
Click Next.
Allow Windows to install the matching driver.
Restart the notebook.
The original troubleshooting used this approach with the extracted driver files.
5: Verify the installation
After restarting:
Open Device Manager.
Expand Network adapters.
Confirm that the Broadcom wireless adapter is listed without a yellow exclamation mark.
Right-click the adapter and select Properties.
Check the Device status on the General tab.
Turn on Wi-Fi and verify that available wireless networks are displayed.
Connect to a wireless network and test Internet connectivity.
If the problem persists
If the driver still does not install:
Confirm that Windows 7 64-bit is installed.
Recheck the Hardware Ids in Device Manager.
Remove the existing Broadcom driver completely.
Restart the notebook.
Install the driver package specifically intended for the HP ENVY 15-ae000/15t-ae-series hardware.
Restart again.
Check Device Manager for the wireless adapter.
If the adapter is still missing, run HP PC Hardware Diagnostics to determine whether the wireless hardware is detected.
