How to fix the error message 0x80070091?

Error code 0x80070091 happens when a file or directory cannot be found. This can be due to a number of reasons, such as the file or directory being moved or deleted, or the file or directory being corrupted.

Other common searches for this error include:

• error code 0x80070091
• error 0x80070091

• Restart your computer and try again
• Check if the drive is connected properly
• Run the Windows check disk utility
• Run the Windows memory diagnostic tool
• Update your drivers
• Scan for malware

1. Restart your computer and try again

1. Shut down your computer.
2. Unplug all external devices.
3. Press and hold the power button for 30 seconds until the computer powers off.
4. Reconnect all external devices and start your computer.
5. When the computer starts up, go to the start menu and click on "Restart."
6. When the computer restarts, choose to "repair your computer."
7. Click on "Next."
8. Select "restart your computer now."
9. Click on "Yes."
10. When your computer restarts, select "startup repair."
11. Click on "Next."
12. Select "enable advanced startup options."
13. Click on "Yes."
14. Click on "Next."
15. Choose "repair your computer."
16. Click on "Next."
17. Click on "Yes."
18. When the computer restarts, it will prompt you to choose how you want to start your computer.
19. Click on "start my computer in safe mode."
20. Choose "enable advanced startup options."
21. Click on "Yes."
22. Click on "Next."
23. Choose "safe mode with networking."
24. Click on "Yes."
25. When your computer restarts, it will prompt you to choose which user account to start in safe mode.
26. Choose "your user account."
27. Click on "Next."
28. Click on "Yes."
29. Click on "Finish."
30. Restore your computer to its previous settings.

2. Check if the drive is connected properly

2. Expand "Disk Drives."
3. Right-click the drive that you're trying to fix and select "Properties."
4. On the "General" tab, make sure that the "Device is working properly" checkbox is checked.
5. If the "Device is working properly" checkbox isn't checked, click it and then click the "Device Status" tab.
6. In the "Device Status" section, make sure that the "Link status" column is set to "Link up."
7. If the "Link status" column isn't set to "Link up," click it and then click the "Driver status" tab.
8. In the "Driver Status" section, make sure that the "Driver name" column is set to the name of the driver that you're using.
9. If the "Driver name" column isn't set to the name of the driver that you're using, click it and then click the "Status" tab.
10. In the "Status" section, make sure that the "Status" column is set to "OK." If the "Device is working properly" checkbox is checked and the "Driver status" section is set to "OK," then the drive is connected properly and you don't need to fix error 0x80070091.

3. Run the Windows check disk utility

1. Open the Windows check disk utility by typing "check disk" in the Start menu's search box.
2. Click on the "check disk" button to start the utility.
3. The utility will ask you to identify the disk that you want to check.
4. Select the disk that you want to check and click on the "check disk" button.
5. The utility will check the disk for errors and fix any that are found.
6. Click on the "OK" button to close the check disk utility.

4. Run the Windows memory diagnostic tool

1. Launch the Windows Memory Diagnostic Tool by pressing the Windows key + R, and typing "memory".
2. On the Memory Diagnostic Tool window, click on the "Startup Repair" button.
3. On the Startup Repair window, select the "Windows 8/8.1/10" option.
4. On the "Select a Problem Category" window, select the "System" category, and then click on the "Next" button.
5. On the "System Configuration Options" window, select the "Diagnostic and Recovery" option, and then click on the "Next" button.
6. On the "Diagnostic and Recovery Options" window, select the "Check for Problems" option.
7. On the "Check for Problems" window, select the "Memory" option, and then click on the "Next" button.
8. On the "Memory Options" window, select the "Check Memory" option.
9. On the "Check Memory" window, select the "All Memory" option.
10. On the "All Memory" window, select the "Check for Problems" option.
11. On the "Check for Problems" window, select the "Invalid Memory" option.
12. On the "Invalid Memory" window, select the "Fix All" option.
13. On the "Fix All" window, click on the "Finish" button.

5. Update your drivers

1. Open the Device Manager and locate the device that is causing the error.
2. Right-click on the device and select Update Driver.
3. In the Update Driver dialog box, click on the Browse my computer for driver software option.
4. On the next screen, locate the driver files that you need and click on the Open button.
5. Once the driver files have been downloaded, click on the Next button and then on the Finish button.
6. Restart your computer.

6. Scan for malware

The first step is to try to restart your computer. If that doesn't work, try to uninstall and reinstall your anti-virus program. If that doesn't work, try to run a full system scan with your anti-virus program.

Still not working? maybe try one of these options:

1. Run the System File Checker tool.
2. Perform a clean boot.
3. Restore your system to a previous restore point.
4. Try to install the update again.