FIX 3: Disable certain items from the Task Scheduler:
There is a high possibility that some of the Windows processes might end up causing Rundll32 high disk and CPU usage issues. It is one of the common causes for the majority of the users who were facing a similar issue. For doing so,
- Go to the Windows search bar and type Administrative tools and open the relevant option from the search result.
- From the shortcut list, click and open Task Scheduler.

- Now click on Task Schedular Library and navigate to the following path,
Microsoft > Windows > Customer Experience Improvement.
- From the right-pane options, locate and right-click on Consolidator and select Properties.
- From the vertical menu, open the Triggers tab, select the One Time trigger and click on edit.
- Now on the Edit Trigger window, navigate to the Advanced settings and untick the checkbox located before the Enabled box.
- Click on OK to save the changes.
- Follow a similar process for the other items (consolidator, KernelCeip Task and UsbCeip) in the list as well.
- Once done, restart your PC and check whether the issue is solved or not.
FIX 4: Rename aienv.dll:
As per users, renaming the aienv.dll has fixed the Rundll32 high disk and CPU usage issue for them. Though before starting with the steps, we recommend you to create a system restore point.
- Launch Windows Explorer and then navigate to the following path, C:\Windows\System32.
- Now inside the folder, locate aeinv.dll. You can find it on the list there, or you can also search it through the search bar present at the top right corner.
- Right-click on aeinv.dll and then click on Rename.
- Change the file name to oldaeinv.dll. You might receive a confirmation prompt stating. You’ll need to provide administrator permission to rename this file. Here click on Continue.
Or
- In case you are still facing issues while renaming the file, then consider changing the ownership of the file. It will then allow you with the permission of renaming the file.
- Once done, restart your system and check whether the issue is solved or if it persists.
FIX 5: Uninstall the Lenovo Dependency package:
In case you are using a Lenovo laptop (any old model) then uninstalling the Lenovo Dependency package might help you in getting rid of the said issue. We recommend you to create a system restore point before trying this fix as a precautionary measure.
- On the Windows search bar, type Control panel and open the first relevant search option.

- Click on Program and Features.
- Now locate Lenovo Dependency Package, right-click on it and select Uninstall.
- Confirm your action by clicking on Yes on the next prompt.
- Once done, restart your system and check whether the issue is solved or not.
At the time, the Rundll3.exe process might cause high disk and CPU usage issues due to some malware. Though the problem is generally not very serious but running out of Disk space and CPU usage can cause frustration among users. Hence, the above fixes will come handy if you are experiencing the same.
These were some tried, tested and proven fixes for “Windows Host Process Rundll32 High Disk and CPU Usage” issue. We hope one or another of them helps you. The fixes are relatively easy and require only some basic computer knowledge for using them. After reading this article, if you have any queries or feedback, please write down the comment on the below comment box.