Avast is a very common antivirus option that provides solid protection against viruses.

Today we are talking about its installer INSTUP.EXE.

you might know what it is and how to fix the Instup.exe issue on Windows.

click Scan now

Now, you could continue to read this post fromMiniTool.

Instup.exe runs the Avast installation program and virus definition update program.

Also see:Avast Not Opening on Windows?

click Check for updates

Here Are Some Useful Solutions

However, many users report that they encounter the Instup.exe issue.

Thus, you’ve got the option to run a virus scan for your system.

Step 2: ClickWindows Securityand then clickVirus & threat protectionunderProtection areas.

Step 3: ClickScan optionsand then checkFull scanin the newly pop-out window.

If there is, use Windows Defender to fix it.

Windows updates can help you fix a lot of system issues and bugs.

When you encounter the Instup.exe error, you’re able to try installing the latest Windows updates.

Here is how to do that:

Step 1: Right-click theStartmenu and chooseSettings.

Step 2: On theSettingswindow, selectUpdate & Security.

Step 3: Under theWindows Updatesection, click theCheck for updatesbutton to peek if there are any new updates.

Then Windows will search for available updates.

Just follow the on-screen instructions to finish the process.

After installing the latest Windows updates, reset your machine and test whether the Instup.exe error gets fixed.

Running this tool can fix the Instup.exe error.

To do that, you just need to openCommand Promptand then typesfc/scannowand press theEnterkey.

Then, you might verify if the error has been fixed.

Now, lets see how to fix it.

Step 1: fire off the Avast Antivirus on your box.

Step 2: Navigate to Avasts user interface and clickSettings.

Then, click theTroubleshootoption and uncheck theAvast Self-Defense Moduleoption.

Step 3: Open File Explorer.

Then, navigate toC:\Drive>ProgramData>AVAST Software>Persistent Data>Avast>Log.

Step 4: In this directory, delete the update log file.

Then, you’re able to check to see if the Instup.exe high CPU issue has been fixed.

Besides, you could know how to fix the Instup.exe high CPU issue.