Clean up Exchange 2013 files and folders - Reclaim disk space

After installing CU20 last night I started the day cleaning up the mess left by the installation and by running Exchange itself. As you all know Exchange likes disk space, the more you throw at it the more it takes, it likes disk space almost as much as it does memory :-).

After coming across the V15\ClientAccess\Owa folder I noticed that it had a lot of folders and files in it with older versions like

• 15.0.1210.2
• 15.0.1210.6
• 15.0.1293.2
• 15.0.1293.4

And so on...

Now after some reading up I couldn't find a definitive answer on if I could savely delete those folders.

So my advise, when in doubt, don't delete!

This comes from my experience from once I deleted the content in the Inetpub\Temp directory, after witch IIS didn't work anymore.

The list below is what I know and found to be safe to delete:

Not that you should logging but you could.

The better solution would be to compress the logging directories, and the best is to add disk space ;-)

C:\Program Files\Microsoft\Exchange Server\V15\Logging\
C:\Program Files\Microsoft\Exchange Server\V15\Bin\Search\Ceres\Diagnostics\ETLTraces\
C:\Program Files\Microsoft\Exchange Server\V15\Bin\Search\Ceres\Diagnostics\Logs
C:\Program Files\Microsoft\Exchange Server\V15\FIP-FS\Data\ProgramLogArchive\
C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\Logs\FrontEnd\Connectivity 
C:\Windows\Temp
C:\Users\%username%\AppData\Local\Temp
C:\Windows\System32\LogFiles
C:\inetpub\logs

Happy disk space reclaiming.

aka.ms shortcut url's - aka.ms url list - index

Know a cool one not listed here? Let me know.

https://aka.ms/aadbitlockerrecovery	Shortcut url to bitlockerkeys
https://aka.ms/DocsExchange_server	Exchange Documentation on docs.microsoft.com
https://aka.ms/EDA	Microsoft Exchange Server Deployment Assistant
https://aka.ms/outlookconnectivity	Microsoft Support and Recovery Assistant for Office 365
https://aka.ms/office365setup	Office 365 mail migration advisor
https://aka.ms/cutoverguidance	Exchange cutover migration assistant
https://aka.ms/imapguidance	IMAP mailbox migration assistant
https://aka.ms/gmailimapguidance	Gmail mailbox migration assistant
https://aka.ms/stagedguidance	Exchange staged migration assistant
https://aka.ms/hybrid2013guidance	Exchange 2013 hybrid assistant
https://aka.ms/hybrid2010guidance	Exchange 2010 hybrid assistant
https://aka.ms/MCRA	Microsoft Cybersecurity Reference Architecture
https://aka.ms/HybridWizard	Download Hybrid Exchange wizard
https://aka.ms/TAPHCW	Download Hybrid Exchange wizard
https://aka.ms/HCWCheck	Download Hybrid Exchange wizard
https://aka.ms/mfasetup	Office365/Azure MFA Setup page
https://aka.ms/portal	Azure Portal
https://aka.ms/exchange2016	Microsoft Exchange Product Page
https://aka.ms/ms	Microsoft Support
https://aka.ms/ehlo	You Had Me At EHLO… blog
https://aka.ms/ex2016docs	Exchange 2016 documentation
https://aka.ms/ex2013docs	Exchange 2013 documentation
https://aka.ms/ex2010docs	Exchange 2010 documentation
https://aka.ms/ex2007docs	Exchange 2007 documentation
https://aka.ms/ex2003docs	Exchange2003 documentation
https://aka.ms/exchangelicense	Exchange Server Licensing
https://aka.ms/exdeploy	Exchange Deployment Assistant
https://aka.ms/exrca	Microsoft Remote Connectivity Analyzer
https://aka.ms/senderidwizard	Sender ID Framework SPF Record Wizard
https://aka.ms/exchangetoolsdocs	Exchange Server Tools
https://aka.ms/ex2010sp1	Exchange 2010 SP1
https://aka.ms/ex2010sp1update	Latest Rollup Update for Exchange 2010 SP1
https://aka.ms/ex2010visiostencil	Exchange 2010 Visio Stencil
https://aka.ms/exwiki	Exchange Wiki Portal
https://aka.ms/ex2010wiki	Exchange 2010 Wiki
https://aka.ms/ex2007wiki	Exchange 2007 Wiki
https://aka.ms/ex2003wiki	Exchange 2003 Wiki
https://aka.ms/exurls	Navigating Exchange Content Like A Pro Using Short URLs
https://aka.ms/o365endpoints	Office 365 URLs and IP address ranges
https://aka.ms/office-install	Manage Office365 number of remaining Office installs
https://aka.ms/hybridkey	Hybrid Key
https://aka.ms/hybridfreebusy	Hybrid Free Busy Troubleshooter
https://aka.ms/exchangecalc	Exchange Server Role Requirements Calculator
https://aka.ms/HybridWizard	Office 365 Hybrid Configuration Wizard
https://aka.ms/downloadazcopy	Azure AZ Copy
https://exrca.com	Microsoft Remote Connectivity Analyzer
https://aka.ms/LearnAboutSpoofing	Anti-spoofing protection in Office 365
https://aka.ms/getteams	Get Microsoft Teams on all your devices
https://aka.ms/setupguidance	Microsoft Office365 Setup guidance
https://aka.ms/winup	Download Windows 10 updates / Media creation tool
https://aka.ms/availabilityzones	Azure Availability Zones
https://aka.ms/windowsphoneappblogpost	Microsoft Authenticator download
https://aka.ms/acdbpricing	Azure Cosmos DB pricing
https://aka.ms/DocsExchangeServer	Exchange PowerShell documentation
https://aka.ms/applicationplatform	Microsoft SQL Application Development
https://aka.ms/teamsios	Download Microsoft Teams for iOS
https://aka.ms/365admin	Office 365 Admin help center
https://aka.ms/aaddev	Azure Active Directory for developers
https://aka.ms/tcproductsservices	Microsoft Trustcenter
https://aka.ms/boosterpack	Microsoft certification and exam offers
https://aka.ms/techsummitmx	Microsoft Techsummit
https://aka.ms/D_zUjXSu8S	Monitor availability and responsiveness of any web site with Azure
https://aka.ms/accasecurity	Office365 Trust Center
https://aka.ms/exo	Exchange Online Pricing
https://aka.ms/powershell	PowerShell documentation
https://aka.ms/posh	Manoj Nair PowerShell Blog
https://aka.ms/hu992v	Hackers tell all
https://aka.ms/WindowsAdminCenter	Windows Admin Center
https://aka.ms/WACDownload	Windows Admin Center Download location
https://aka.ms/mysecurityinfo	Office365 Security settings (MFA)
https://aka.ms/sspr	AzureAD Self-Service Password Reset
https://aka.ms/no	No
https://aka.ms/securingad	Securing AD documentation
https://aka.ms/laps	LAPS Download
https://aka.ms/proofup	Reenrolling Authenticator
https://aka.ms/sorry	Sorry
https://aka.ms/hybridkey	Request On-premises Hybrid Server License key
https://aka.ms/teamsadmincenter	Teams Admin Center
https://aka.ms/Azfunpath	Azure Fundamentals Learning path
https://aka.ms/wheresmydata	Where your Microsoft 365 customer data is stored
https://aka.ms/TrainCertPoster	Microsoft certification overview
https://aka.ms/EduFrequentLinks	Frequently used MicrosoftEDU aka.ms links
https://aka.ms/AzureStack/Shortcuts	All Azure Stack shortcuts
https://aka.ms/Azure/Shortcuts	All Azure shortcuts
https://aka.ms/PBI	Power Bi portal
https://aka.ms/azureatp	Azure ATP portal
https://aka.ms/ppac	Power Platform portal
https://aka.ms/teamsadmincenter	Teams Admin Center portal
https://aka.ms/cqd	Teams CQD portal
https://aka.ms/azure	Azure admin Portal
https://aka.ms/compliancemanager	Compliance Manager Portal
https://aka.ms/flow	Power Automate/Flow portal
https://aka.ms/login	Office Portal
https://aka.ms/PSWindows	Installing Powershell core on Windows
https://aka.ms/Install-PSMac	Installing Powershell core on MacOS
https://aka.ms/Install-PSLinux	Installing Powershell core on Linux
https://aka.ms/bckeys	List of all Keyboard Shortcuts
https://aka.ms/cieonline	Discover how to drive digital transformation using Microsoft 365
https://aka.ms/mslists	Microsoft Lists Resource Center
https://aka.ms/msa	Microsoft Services Agreement
https://aka.ms/CrossTenantMailboxMigration	Public Preview of the native Cross-tenant mailbox migration
https://aka.ms/WACdownload	Windows Admin Center download
https://aka.ms/TssTools	Windows Support Platform Escalation Team tool
https://aka.ms/upgradetoteams	Teams Only mode considerations
https://aka.ms/ExchangeHealthChecker	Exchange Health Checker script
https://aka.ms/m365d	Microsoft Defender
https://aka.ms/m365goldenconfig	Identity and device access configurations
https://aka.ms/HybridWizard	Latest Hybrid Configuration Wizard
https://aka.ms/AzureATP	Microsoft Defender for Identity
https://aka.ms/CredGuard	Windows Defender Credential Guard
https://aka.ms/LeakedCreds	What is Identity Protection?
https://aka.ms/LateralmovementRisk	Microsoft Defender for Identity Lateral Movement Paths (LMPs)
https://aka.ms/CyberPAW	Securing devices as part of the privileged access story
https://aka.ms/SSMSFullSetup	SQL server management studio
https://aka.ms/HC-DisableIPv6	Roderick Milne explains why and how to disable IPv6
https://aka.ms/HC-ConfigureIPv6	Official docs.microsoft.com documentation on IPv6 disable
https://aka.ms/terminal	Windows Terminal product page
https://aka.ms/ssmsfullsetup	SQL Server Management Studio
https://aka.ms/AAgh2el	Feedback HUB
https://aka.ms/GetPCHealthCheckInsidersX64	PC health check installer
https://aka.ms/getteamsmobile	Teams mobile app
https://aka.ms/getoutlookmobile	Outlook mobile app
https://aka.ms/officetraining	Microsoft Office Help & Training
https://aka.ms/quickstart	Quick start sheets
https://aka.ms/outlooktraining	Outlook training
https://aka.ms/exceltraining	Excel training
https://aka.ms/wordtraining	Word training
https://aka.ms/accesstraining	Access training
https://aka.ms/onenotetraining	OneNote training
https://aka.ms/sharepointtraining	SharePoint training
https://aka.ms/ge	Graph Explorer