Default Behavior. Web Account Manager is a Win32 service. In Windows 10 it is starting only if the user, an application or another service starts it. When the Web. Windows 10 - high CPU usage is a real issue. Checking the TASK MANAGER, the culprit appears to be the svchost.exe. That program/app alone is using 25% of the CPU. Microsoft claims that this program is legitimate. Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft.
Hello Vincent,My name is Parmi, I am an Independent Advisor. Thank you for posting your question.
I'll be happy to help.To clear your credentials manager, please follow below steps. Clear credentials.1. FileAccountunder User Information, sign out all the existing account and exit all Office apps.2.
Control PanelUser Accountscredential managerWindows Credentials, remove all Office 365 credentials that look like: MicrosoftOfficeXXData:XXXXXXXXX3. Right click windows iconRuntype 'regedit' then press ENTER to open the redistry editor. Go to HKEYCURRENTUSERSoftwareMicrosoftOffice16.0CommonIdentity, delete the whole Identity folder4. Restart computer.Please refer to below articleOutlook is configured to prompt you for credentialsIncorrect password cached in credential storageRequired Authentication Settings for outgoing server and incoming serverOutlook Anywhere is not configured to use NTLM AuthenticationCorrupt Outlook profileSlow or unstable network connectionAntivirus programsShared calendarsPlease let me know if, you have any other queries.Regards,Parmi.