I just found this problem, so I'm assuming something happened recently. I had an HP N1212nf mulitfunction printer that I recently converted from a USB connection to an ethernet wireless connection, and now the computer won't see that at all. I've uninstalled that printer and the unknown device is still there. I've also been getting a message, even after uninstalling the printer, that Scan to Computer is Currently Unavailable, network printing can't be found. But I have another network printer that works perfectly - an HP deskjet 3520 that I installed about 2 weeks ago. Hello, Welcome to Microsoft Community Forum. I would suggest you to try the following steps: Step 1: For issue regarding system freezing on startup: Refer the link: Windows 8.1, Windows 8 or Windows 7 hangs or freezes Step 2: For the error Code 28 refers - The drivers for this device are not installed.

Recommended resolution - Install the driver Refer the link: Error codes in Device Manager in Windows You may be prompted to provide the path of the driver. Windows may have the driver built-in. If you are asked for the driver and you do not have it, you can try to download the latest driver from the hardware vendor’s Web site. Drivers Canon Mf Toolbox 4.9. Click Start, and then click Control Panel. Click System and Maintenance, click System, and then click Device Manager. Note If Control Panel is in Classic View, double-click System, and then click Device Manager.

If you are prompted for an administrator password or for a confirmation, type the password, or click Allow. Now expand the devices and check if you are getting any exclamation or cross marks with the devices listed. Right click the device to view the properties of the device and click the Driver tab, and then click Update Driver to start the Hardware Update Wizard. Follow the instructions to install the driver. Canon Ir 2525 User Manual Pdf. I have been working on Step 2 for a few hours now.

Since the device manager says Unknown Device, it is really tough to download a driver. I can't put in the path for the driver if I don't know what driver I need. After going through a lot of Windows Updates (even though it is set for automatic, there were 2 critical and 9 optional waiting), I was able to figure out I think what the missing driver is. There was one optional update that failed - for an Intel Storage Controller 7 Series/C216 Chipset Family SATA AHCI Controller. I clicked on the HP support link, and it took me around in circles. It found my computer, then when I said OK scan it for drivers, it said that it did not detect my computer, but did detect another device - which was my computer!

I went into Intel.com and ran its Utility update software. It said that the I ntel Chipset Software Installation Utility (Chipset INF) is up to date. It found no results when I searched for this particular controller So, now that I think I have narrowed down the driver, where in the heck do I find the driver for it? Or have I reached the point where I need to take the computer in for service?

Hp Color Laserjet Firmware Update. It is only a year and a half old. Hello, I apologies for the late response. Have you tried all the suggestions provided in the earlier post? If yes, then I would suggest you to uninstall and reinstall the Display adaptor & Intel Chipset drivers. Please refer to the following steps to uninstall and reinstall Display and Chipset drivers from device manager: 1. Click on Start and in Start search box type in ' Device Manager'. In Device Manager, double click on the display adaptor.

Hewlett-Packard HP Compaq 6530b Driver Scan Result. Unknown Device. Microsoft Surface ACPI-Compliant Control Method Battery.

It will show you the device driver name, select that device and then right click on it. Now select properties. In the properties window, under Driver tab, click on Uninstall button. After the uninstalling the drivers restart the computer. Reinstall the drivers from the device manufacturer website. Refer the link: Intel Driver update Utility HP Drivers & Downloads Hope this information is helpful.

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