This text lists some options to repair the Outlook high Memory and CPU usage challenge on Home windows PC. Once we launch a program, the CPU could go high for a while, because it has to do processing duties. After a while, the CPU usage ought to fall. If the CPU usage stays high for a very long time, it creates efficiency points in a Home windows pc. Equally, high RAM usage also can have an effect on the system’s efficiency. Due to this fact, you will need to repair this challenge.

Outlook high Memory and CPU usage

If Outlook reveals high Memory and CPU usage in your system, the options offered under will make it easier to. Earlier than you proceed, just remember to are utilizing the most recent model of Microsoft Workplace. Test for the Workplace updates manually and set up them if out there.

Configure Outlook choices
Launch Outlook in Protected Mode
Flush your DNS cache
Are you utilizing Pi-hole or one other comparable DNS-based advert blocker?
Delete and add your account once more
Test your Hosts file
Cut back the scale of Outlook knowledge information
Disable Telemetry
Troubleshoot in a Clear Boot state
Restore Workplace

Let’s see all these fixes intimately.

1] Configure Outlook choices

This is step one that you must do. Based on some customers, altering some settings in Outlook helped to decrease CPU consumption. You too can do this. You possibly can disable these settings in Outlook if you don’t require them.

First, open Outlook and go to “File > Options.” Now, flip off the next choices if you don’t require them.

Choose Calendar from the left aspect and then uncheck the “Show calendar details in Screen Tip” checkbox underneath the Scheduling assistant part. Now, scroll down and uncheck the Present climate on the calendar checkbox.
Choose the Folks class and then uncheck the Present consumer pictures when out there checkbox underneath the On-line standing and pictures part.
Choose the Search class and uncheck the Enhance search velocity by limiting the variety of outcomes proven checkbox. This motion could have an effect on the search velocity in Outlook.
Choose the Superior class and uncheck the Use animations when increasing conversations and teams checkbox underneath the Different part.

2] Launch Outlook in Protected Mode

The difficulty also can happen on account of a problematic add-in put in in Outlook. To examine this, launch Outlook in Protected Mode and then see the CPU consumption by it. If it doesn’t eat high CPU within the Protected Mode, the issue is going on on account of an add-in. Now, you must determine that add-on. To take action, observe the steps offered under:

Exit Outlook Protected Mode and open it in regular mode.
Go to “File > Options > Add-Ins.”
Choose COM Add-ins within the drop-down on the appropriate aspect and click on Go.
The add-ins that present checkmarks are enabled. Uncheck the checkbox of one of many add-ins and click on OK. This step will disable that Add-in.
Restart Outlook and see its CPU consumption.

Repeat the above steps till you discover the problematic add-in.

3] Flush your DNS cache

DNS cache corruption causes web points on a Home windows pc. However from the reviews, some customers discovered the corrupted DNS cache liable for the high CPU usage. We recommend you flush your DNS cache and see if it helps.

It’s a must to execute instructions in Home windows PowerShell or Command Immediate to flush the DNS cache. Should you discover it tough, you can even use our FixWin instrument to flush the DNS cache in only one click on.

4] Are you utilizing Pi-hole or one other comparable DNS-based advert blocker?

Pi-hole and different comparable advert blocker software program have been discovered to dam Microsoft URLs. Because of this, customers skilled high CPU and RAM usage points. In case you are additionally utilizing DNS-based advert blocker software program, enable the next two URLs:

cell.pipe.aria.microsoft.com
settings-win.knowledge.microsoft.com

5] Delete and add your account once more

If the issue nonetheless persists, we propose you take away and add your account once more in Outlook.

Undergo the next directions:

Open Outlook.
Go to “File > Info.”
Click on on Account Settings and then choose Account Settings.
Choose the account you need to delete and then click on Take away.

After deleting your account, restart Outlook and add your account once more.

6] Test your Hosts file

In Home windows, the Hosts file is used to map hostnames to IP addresses. You possibly can block any web site utilizing the Hosts file with out putting in any third-party software program. The Hosts file is positioned on the following location on a Home windows pc:

C:WindowsSystem32driversetc

You possibly can open it in Home windows Notepad. Open the Hosts file and delete all of the entries exhibiting Microsoft URL. Earlier than you proceed, we propose you create a System Restore Level and again up your Hosts file by copying it to a different location. You too can restore the Hosts file to the default.

7] Cut back the scale of Outlook knowledge information

High reminiscence consumption by Outlook also can happen because of the massive Outlook knowledge information. We recommend you scale back the scale of Outlook knowledge information.

8] Disable Telemetry

This repair requires you to make adjustments in Home windows Registry. Home windows Registry is a database of Home windows configurations and settings. Due to this fact, incorrect modifications to the Registry could make your system unstable. Therefore, we suggest you create a System Restore Level and again up your Registry earlier than continuing.

Observe the steps offered under:

Open the Registry Editor. Copy the next path and paste it into the tackle bar of the Registry Editor. Hit Enter.

ComputerHKEY_CURRENT_USERSoftwareMicrosoftOfficeCommonClientTelemetry

Ensure that the ClientTelemetry folder is chosen on the left aspect. Search for the DisableTelemetry Worth on the appropriate aspect. If the worth will not be current there, you must create it. For this, observe the below-written steps:

Choose the ClientTelemetry folder on the left aspect. Now, right-click within the empty house on the appropriate aspect.
Go to “New > DWORD (32-bit) Value.”
Give the identify DisableTelemetry to the newly created worth.
Now, double-click on the DisableTelemetry worth and sort 1 in its Worth Information.
Click on OK to save lots of the adjustments.
Shut the Registry Editor and restart your pc.

9] Troubleshoot in a Clear Boot state

One doable reason behind the issue is a conflicting background utility or service. To verify if that is so with you or not, begin your pc in a Clear Boot state. Within the Clear Boot state, open Outlook and monitor the CPU consumption. If CPU consumption by Outlook stays regular within the Clear Boot state, you must determine the problematic background app or third-party service.

If the issue disappears within the Clear Boot state, do the next to determine the problematic background app:

Allow a number of the disabled background apps and restart your pc.
Open Outlook and examine if the issue happens. If the issue doesn’t happen, allow a number of the remaining background apps and restart your pc. Test once more for the difficulty.
If the issue happens after enabling the background apps, certainly one of them is the wrongdoer. Now, begin disabling the apps one after the other that you’ve simply enabled.
Restart your pc each time you disable an app and then examine for the difficulty.

The above steps will take time however will make it easier to determine the wrongdoer app. As soon as you discover it, uninstall it. Observe the identical steps to determine the conflicting third-party service however this time, it’s essential to use the MSConfig app.

10] Restore Workplace

If the issue occurred because of the corrupted Workplace information, repairing Workplace will assist. You possibly can run Fast Restore. If it doesn’t assist, run On-line Restore.

Learn: Repair 0x80040900 Outlook Error code.

Why is Outlook consuming a lot reminiscence?

There could be many the reason why Outlook is consuming a lot reminiscence in your pc. Lots of emails could be certainly one of these causes. Delete the emails that aren’t vital. One other reason behind this challenge is the massive Outlook knowledge file.

Troubleshoot: Microsoft Outlook issues

The way to repair Microsoft Outlook error out of reminiscence or system sources?

The “Out of memory or system resources” error in Outlook could happen on account of a nasty add-in. Open Outlook in Protected Mode and see if the error happens. Additionally, shut all different packages working in your system. In case you are experiencing efficiency points in your system, the reason for this error could also be related together with your RAM.

Learn subsequent: Outlook Guidelines aren’t supported for this account.

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Outlook high Memory and CPU usage [Fix]