New Outlook

ApplicationMicrosoft Corporation

Dem still dey call am outlook (new), olk, new outlook for windows

Microsoft CorporationProductivity

Di Store and WebView Outlook client wey Microsoft dey push consumers go. Di process na olk.exe. E no be classic OUTLOOK.EXE.

Wetin you need know

New Outlook na olk.exe. Classic Outlook na OUTLOOK.EXE.

Di Store/WebView client no be di Office16 mail app. PST, COM add-ins, and plenti offline features dey stay for classic Outlook. Windows Mail na third process, HxOutlook.exe.

Wetin e be?: Di Store/WebView Outlook client
Process?: olk.exe, no be OUTLOOK.EXE
PST and COM add-ins?: Those ones dey stay for classic Outlook

Feex tok say

If di process na olk.exe, you dey inside New Outlook, no be classic. I no go run outlook.exe /safe on top dis client. scanpst.exe na classic Outlook tool.

Wetin be New Outlook?

New Outlook na Microsoft newer Windows mail client. olk.exe na di process. Classic Outlook na OUTLOOK.EXE under Office16. Windows Mail na HxOutlook.exe. Dis article na for di new client.

If you never use am before

If Windows 11 or classic Outlook show "Try the new Outlook", dis one na olk.exe, no be OUTLOOK.EXE. Na Store / WebView client. Classic Outlook na di Office Win32 app with profiles, OST/PST, and COM add-ins. Windows Mail na HxOutlook.exe. To flip di toggle dey start different executable.

Wetin dem dey use am for?

Mail and calendar inside one WebView shell

E look like Outlook on the web inside window. Classic Outlook na Win32 MAPI, no be dis shell.

Consumer Microsoft accounts

Di path wey Microsoft prefer after Mail. Work tenants fit still require classic Outlook.

Side by side with classic

You fit install both together. Di toggle no be theme. E dey launch olk.exe instead of OUTLOOK.EXE.

Na who e dey for?

Windows 11 users wey dem push commot Mail
People wey flip Try the new Outlook
Anybody wey still need PST or COM add-ins and suppose stay for classic

Current status

Actively developed. Microsoft dey document feature gaps compared to classic Outlook. Dis article na olk.exe.

How old e be?

Microsoft release New Outlook for Windows for 2022 and dem don dey push consumers commot Mail make dem dey use dis client. Classic Outlook don dey use OUTLOOK.EXE since di 1990s. Dem no be just skin change.

Versions

Major channels first. Exact build numbers no dey all verified here.

New Outlook (olk.exe)

Classic Outlook (OUTLOOK.EXE)

System requirements

Values dey follow wetin di publisher release publicly. Workload still dey change di real need.

Minimum

Minimum system requirements
Operating system	Current supported Windows 10 or Windows 11 release, according to di vendor
RAM	E reach for Windows plus dis app. Heavy projects go want more.

Resource profile

CPU demand: Dey follow wetin you open inside di app
RAM demand: Dey follow documents, tabs, or libraries

Installed processes

Dese executables belong to dis product when e dey installed.

Installed processes
olk.exe	New Outlook for Windows

Startup components

New Outlook fit start with Windows from im own setting. Dat one na olk.exe, no be OUTLOOK.EXE.

File locations

Common New Outlook locations
Typical install	C:\Program Files\WindowsApps\Microsoft.OutlookForWindows_*\olk.exe

File formats

mail in the new Outlook cache

Common wahala dem

Add-ins and PST dey miss

Those ones belong to classic Outlook. To turn di new toggle off dey bring back OUTLOOK.EXE if Office still get am.

People dey repair Microsoft 365 Apps to fix Store Outlook crash

olk.exe dey stay inside WindowsApps. Repair di Store app or di Outlook (new) package, no be only Click-to-Run.

How to get unstuck

Open file location on olk.exe

Microsoft.OutlookForWindows na dis client. Office16\OUTLOOK.EXE na classic. HxOutlook.exe na Windows Mail.

Read Microsoft feature comparison before you migrate work profile

If you need PST or COM add-ins, stay for classic Outlook. Dis exe no go suddenly bring dem out overnight.

No download olk.exe from filename site

Install New Outlook from Microsoft Outlook support pages or di Store. Classic Outlook still dey come from Office setup.

Alternatives

Classic Outlook, Windows Mail, and Thunderbird overlap. Classic Outlook na di Office sibling wey dis article no be.

Official help and downloads

Start with di vendor. Random exe sites no be support channel.

Official contacts
Download	support.microsoft.com/outlook Official installer or vendor page
Help	support.microsoft.com/outlook Vendor support
Official site	support.microsoft.com/outlook Start here, no be random exe host
Classic vs new features	support.microsoft.com/office/feature-comparison-between-new-outlook-and-classic-outlook-de453583-1e76-48bf-975a-2e9cd2ee16dd PST, COM add-ins, and offline
Microsoft Store: Outlook	apps.microsoft.com/detail/9nrx63209x7x New Outlook package wey plenti PCs dey get

Related hardware

WebView mail client dey find RAM like oda WebView apps. GPU no dey make IMAP fast pass normal.

Technical details

Vendor version numbers dey change. Dis article no pin down any build.

Sources and verification

Recorded source label: August 2026. Dis label no establish independent verification. How we dey do research.

New Outlook official site · Vendor product page
New Outlook help · Vendor support
Feature comparison: new vs classic · Wetin olk.exe never fit do
Office command-line switches · olk.exe versus outlook.exe
Foxhole process map · First-party samples on top Windows PCs. No be lab benchmark.

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