How to Fix Mso.dll Errors

Do not download mso.dll from a “DLL download” website.

There are many reasons whydownloading a DLL file is a bad idea.

Restore mso.dll from the Recycle Bin.

mso dll error message

The easiest possible cause of a “missing” mso.dll file is that you’ve mistakenly deleted it.

Close out of any unnecessary open programs and have another go.

One really easy way to do this is to store your work and then simplyrestart the computer.

Reinstall the programthat uses the mso.dll file.

Or, if the program supports it, repair the installation instead.

Try your best to complete this step.

Run a virus/malware scan of your entire system.

Use System Restore to undo recent system changes.

Update the driversfor hardware devices that might be related to mso.dll.

The mso.dll file may or may not be related to video cardsthis was just an example.

The key here is to pay very close attention to the context of the error and troubleshoot accordingly.

Roll back a driverto a previously installed version if errors began after updating a particular hardware rig’s driver.

spin up the sfc /scannow System File Checker commandto replace a missing or corrupt copy of the mso.dll file.

Since this DLL file is provided by Microsoft,System File Checkershould restore it.

Install any available Windows updates.

Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your rig.

The mso.dll file could be included in one of those updates.

Test your memoryand thentest your hard drive.

If the hardware fails any of your tests,replace the memoryorreplace the hard driveas soon as possible.

Repair your installation of Windows.

Use afree registry cleanerto repair mso.dll related issues in the registry.

We rarely recommend the use of registry cleaners.

Perform a clean installation of Windows.

This will erase everything from thehard driveand install a fresh copy of Windows.

If none of the steps above correct the mso.dll error, this should be your next course of action.

All the information on your hard drive will be erased during this step.

Troubleshoot for a hardware problemif any mso.dll errors persist.

After a clean installation of Windows, your DLL problem can only be hardware related.

Need More Help?

There are several ways mso.dll errors can show up on your gear.