From 69b918851e2664befcaf0155b5a43b0a75d41336 Mon Sep 17 00:00:00 2001 From: greg-lindsay Date: Wed, 7 Oct 2020 15:29:34 -0700 Subject: [PATCH] new procedure for drivers --- windows/deployment/upgrade/quick-fixes.md | 61 ++++++++++++++++++++++- 1 file changed, 60 insertions(+), 1 deletion(-) diff --git a/windows/deployment/upgrade/quick-fixes.md b/windows/deployment/upgrade/quick-fixes.md index fa2817f19b..c4a602aacd 100644 --- a/windows/deployment/upgrade/quick-fixes.md +++ b/windows/deployment/upgrade/quick-fixes.md @@ -38,6 +38,7 @@ The Microsoft Virtual Agent provided by [Microsoft Support](https://support.micr
  • Check the system drive for errors and attempt repairs. More information.
  • Run the Windows Update troubleshooter. More information.
  • Attempt to restore and repair system files. More information.
    • +
  • Check for unsigned drivers and update or uninstall them. More information.
  • Update Windows so that all available recommended updates are installed, and ensure the computer is rebooted if this is necessary to complete installation of an update. More information.
  • Temporarily uninstall non-Microsoft antivirus software. More information.
    • @@ -152,9 +153,67 @@ To check and repair system files: ``` > [!NOTE] - > It may take several minutes for the command operations to be completed. For more information, see [Repair a Windows Image](https://msdn.microsoft.com/windows/hardware/commercialize/manufacture/desktop/repair-a-windows-image). + > It may take several minutes for the command operations to be completed. For more information, see [Repair a Windows Image](https://msdn.microsoft.com/windows/hardware/commercialize/manufacture/desktop/repair-a-windows-image) and [Use the System File Checker tool](https://support.microsoft.com/help/929833/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system). +### Remove unsigned drivers + +Drivers that are not properly signed can block the upgrade process. To check your system for unsigned drivers: + +1. Click **Start**. +2. Type **command**. +3. Right-click **Command Prompt** and then left-click **Run as administrator**. +4. If you are prompted by UAC, click **Yes**. +5. Type **sigverif** and press ENTER. +6. The File Signature Verification tool will open. Click **Start**. +7. After the scanning process is complete, click **Advanced**, and then click **View Log**. +8. Locate drivers in the log file that are unsigned and remove or update them using Device Manager. For more information, see [Using Device Manager to uninstall devices and driver packages](https://docs.microsoft.com/windows-hardware/drivers/install/using-device-manager-to-uninstall-devices-and-driver-packages). + +>[!NOTE] +>If a file is corrupted, it might display as unsigned. Be sure to [repair the system drive](#repair-the-system-drive) and [repair system files](#repair-system-files) before attempting to replace unsigned drivers. + +#### Optional: Use sigcheck + +[Sigcheck](https://docs.microsoft.com/sysinternals/downloads/sigcheck) is a tool that you can download and use to review digital signature details of a file. + +To use sigcheck: + +1. Download [sigcheck.zip](https://download.sysinternals.com/files/Sigcheck.zip) and extract the tool to a directory on your computer, for example: **C:\sigcheck**. +2. Click **Start**. +2. Type **command**. +3. Right-click **Command Prompt** and then left-click **Run as administrator**. +4. If you are prompted by UAC, click **Yes**. +5. In the command window, use the **cd** command to switch to the directory where you extracted sigcheck, for example **cd c:\sigcheck**. +6. Next, generate a list of drivers using driverquery.exe. To do this, type **driverquery /v > c:\sigcheck\drivers.txt** and press ENTER. See the following example: + + ```cmd + C:\Sigcheck>Driverquery /v > C:\sigcheck\drivers.txt + + ``` +7. Open the drivers.txt file and locate the problem driver that was reported by sigverif in the procedure above. Copy the path to the driver. +8. To check the driver, type **sigcheck64 -u -e \** and press ENTER. See the following example: + + ``` + C:\Sigcheck>sigcheck64.exe -i c:\windows\system32\DolbyMATEnc.dll + + Sigcheck v2.80 - File version and signature viewer + Copyright (C) 2004-2020 Mark Russinovich + Sysinternals - www.sysinternals.com + + c:\windows\system32\DolbyMATEnc.dll: + Verified: Unsigned + Link date: 6:43 PM 9/20/2028 + Publisher: n/a + Company: Microsoft Corporation + Description: Dolby MAT Encoder DLL + Product: Microsoft« Windows« Operating System + Prod version: 10.0.18362.1 + File version: 10.0.18362.1 (WinBuild.160101.0800) + MachineType: 64-bit + + ``` +In addition to unsigned drivers, drivers might be signed with an invalid certificate, requring the driver to be updated or removed so that Windows upgrade can continue. + ### Update Windows You should ensure that all important updates are installed before attempting to upgrade. This includes updates to hardware drivers on your computer.