Error Code 0x80070490 - What is it?
Error code 0x80070490 occurs in versions of Windows including Windows 8 or 8.1 and Windows 7 or Windows Vista. This error often arises when users attempt to install updates via Windows Update or Microsoft Update.
The main reason for the error relates to the Component-Based Servicing (CBS) manifest which has become damaged. When the error occurs, the Windows device is unable to successfully install updates.
Solution
Error Causes
Error code 0x80070490 might appear for various reasons but is most prominent in the following cases:
- Attempts to install Windows 8 or 8.1
- A corrupted Component-Based Servicing (CBS)
Further Information and Manual Repair
The solutions for error code 0x80070490 vary so users may need to attempt each solution to find the best results.
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Repair Corrupted Windows Files with System File Checker
The System File Checker (SFC.exe) is a Windows-based utility that enables users to check and repair corrupted or damaged system files. It can also restore missing systems files which can be the cause of errors such as error code 0x80070490.
To repair files, begin scan by swiping the right edge of the screen then opening the search box. Type Command Prompt, right-click this option, then select Run as Administrator. Once the scan begins, wait for the process to be completed then restart your device. Check if the error is resolved by reattempting updates. If error code 0x80070490 in Windows 8 or 8.1 persists on your device, proceed to the solution below.
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Perform Clean Boot
A clean boot is one of the best ways to reduce conflict among files – an issue that may arise whenever users update, install or run programs on their Windows device.
To run a clean boot, your device reboots using limited drives and programs. The process allows you to identify which conflict among programs is causing errors on your Windows device.
You can access the clean boot tool by entering msconfig in the search box. Select Services, then System Configuration. Check the Hide all Microsoft services checkbox then select Disable all. Next, go to the Startup tab, click and open Task Manager. After selecting the Startup tab, make sure you right-click each startup program. Click Disable from the context menu then close Task Manager when done. Select OK on the System Configuration menu then restart your machine to clean boot Windows 8 or 8.1.
If the clean boot successfully identifies and resolves issues with corrupted files, you will be able to access updates using Windows Update or Microsoft Update. Error code 0x80070490 will no longer occur. But if that proves unsuccessful, other options are available below including running Windows Update Troubleshooter.
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Run Windows Update Troubleshooter
This method can provide a simple solution for users as it verifies whether your Internet connection, network adapter and Windows Update services are functioning properly. However, if you are uncertain as to whether you will be able to troubleshoot, seek assistance from a qualified Microsoft technician.
To run Windows Update Troubleshooter, simply download from Microsoft’s website. Be sure you are downloading the tool recommended for your operating system, in this case Windows 8 or 8.1. After you download Windows Update Troubleshooter, run it to enable the tool to check for and resolve update issues on your device.
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Use DSIM or System Update Readiness Tool
The System Readiness Tool or DSIM is another method you can use to correct issues related to error code 0x80070490. This tool checks problems on your system that might prevent your computer from performing Windows updates including issues related to damaged system files.
Once you download and install this tool, it will be able to run automatically. The process may be technical, however, requiring specialized knowledge to successfully download and run the tool. Consider getting assistance from an IT professional in this case. Also, check Microsoft's online resources to download the tool.
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Use an Automated Tool
Having an automated tool at hand will enable users to always be prepared. Download a powerful automated utility tool to provide solutions whenever error codes or other problems affect your Windows 8 device.

In run dialog type RegEdit and press ENTER
In registry editor find HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
Right-click on Parameters> New> DWORD 32
Name it IRPStackSize and change the value to 32
Save and reboot your computer.
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