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.