I have been using 3G USB stick on my laptop which has Win7 64 bit installed. It worked fine for last 1 year and suddenly one morning when I tries to connect USB it said Please connect device. I unplugged modem and tried multiple times but system couldn't detect it.Then I looked into device manager and it showed yellow flag on device drivers for USB modem with below error:

• Usb Modem Prolink

Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.

Erio Connection Usb Modem Direct Driver - pamasguvali. Erio Connection Usb Modem Direct Driver -- Erio Connection Usb Modem Direct Driver BrazilCongo. USB Network Drivers for Windows 10, 8.1, 8 and 7 Thesycon's USB network drivers provide a network adapter emulation on Windows operating systems.

I re installed device drivers but no success.

I Googled about it and only solution I found is press F8 while booting and then disable driver signing. Just wondering how it worked for 1 year and suddenly stopped working.

Note: Previous day I had changed some services and set start up type as Manual, I don't really know which all services I modified. Can this be an issue?

1 Answer

Usb Modem Prolink

Since you have changed system services and don't remember which ones, you can try System Restore to set your system back to a point previous to the changes. System Restore can be found by going to START > All Programs > Accessories > System Tools > System Restore.

Typically one the latest restore points are shown. If you don't see a date before you made the changes, you may need to check the box at the bottom to see more restore points (see image below).

To answer;

Previous day I had changed some services and set start up type as Manual, I don't really know which all services I modified. Can this be an issue?

Absolutely it will be. You should not change services unless you know what they do and how it will affect the system.

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Erio Connection USB ModemDirect driver is a windows driver .

Common questions for Erio Connection USB ModemDirect driver

Q: Where can I download the Erio Connection USB ModemDirect driver's driver?
Please download it from your system manufacturer's website. Or you download it from our website.
Q: Why my Erio Connection USB ModemDirect driver doesn't work after I install the new driver?
1. Please identify the driver version that you download is match to your OS platform.
2. You should uninstall original driver before install the downloaded one.
3. Try a driver checking tool such as DriverIdentifier Software .
As there are many drivers having the same name, we suggest you to try the Driver Tool, otherwise you can try one by on the list of available driver below.
Please scroll down to find a latest utilities and drivers for your Erio Connection USB ModemDirect driver.Be attentive to download software for your operating system.
If none of these helps, you can contact us for further assistance.

Erio Connection USB ModemDirect driver download list Description: Erio Connection USB ModemDirect driver setup Version: 4.2.8 Date: 09 Sep 2014 Filesize: 0.81 MB Operating system: Windows XP, Visa, Windows 7,8 (32 & 64 bits)

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