Error code 0x80071a90 occurs when there is a problem with the computer's hard drive. This can be caused by a variety of factors, including bad sectors, corrupted data, or a faulty hard drive.
1. Restart the computer
- Click on the Start button.
- Type "cmd" in the search bar and press Enter.
- Type "restart" in the command prompt and press Enter.
- Choose the "Restart now" option from the menu.
- Wait until the computer restarts.
2. Check for updates and install them
- Open the Hyper-V Manager.
- Click the Servers tab.
- Right-click the server you want to check for updates and select Check for Updates.
- If there are any updates available, hyper v will prompt you to install them. Click OK to install the updates.
- If there are no updates available, hyper v will report that there are no updates available and will not prompt you to install them.
3. Try to run the Hyper-V Manager as administrator
- Click Start, type "cmd" in the search box, and press Enter.
- Type "net start hyper-v" and press Enter.
- Type "net stop hyper-v" and press Enter.
- Type "net status hyper-v" and press Enter.
- Type "cmd.exe" and press Enter.
- Type "setx /P <error code> <priority> " and press Enter.
- Type "net start hyper-v" and press Enter.
- Type "net stop hyper-v" and press Enter.
- Type "net status hyper-v" and press Enter.
- Type "exit" and press Enter.
If the answers above didn't work then you should also try:
- Try to enable the Hyper-V role through the PowerShell.
- Try to install the Hyper-V role through the PowerShell.
- Try to enable the Hyper-V role through the Server Manager.
- Try to install the Hyper-V role through the Server Manager.