How to Manage and Reduce Microsoft Cloud-Based Storage

Maintaining your WSU cloud-based Microsoft storage usage within your available storage capacity reduces the risk of losing untimely access to important files and facilitates a more efficient online workflow.

To effectively manage and reduce your WSU Microsoft storage usage while staying compliant with university records retention policies, please follow the guidelines provided in this resource.

WSU Records Retention Procedures

All WSU personnel are responsible for retaining and disposing of university records in accordance with retention periods approved by the Washington State Records Committee. (RCW 40.14)

Please review approved university records retention schedule to ensure compliance before deleting or archiving any records from the WSU Microsoft environment.

All employees must review all Microsoft documents and determine what records must be kept and for how long prior to appropriate disposal in accordance with Chapter 90: University Records–Retention and Disposition (90.01) of WSU’s Business Policies and Procedure Manual.

It is important to understand who the responsible owner of certain content is as the average employee records retention requirements within an individual WSU Microsoft account are often minimal. For example, many employees are not required to retain duplicate records if there is an original copy of the content in a separate application such as Workday, Percipio, or myWSU.

Learn more about WSU records retention and disposition.

Unless otherwise noted, most of the following records can be destroyed once they are no longer needed for university business:

Type of RecordAmount of Time
Brainstorming and CollaboratingRetain until no longer needed
Business/Work Plans2 years after completion/expiration
Calendars (Employee)1 year after calendar year end
Client/Customer Feedback and Complaints3 years after received/resolved
Contact InformationRetain until no longer needed
Drafting and EditingRetain until no longer needed
Electronic CommunicationsRetain in accordance with the records series that is applicable to the informational content of the message
Electronic Documents Used To Create Signed Paper RecordsRetain until no longer needed
Informational Notifications/CommunicationsRetain until no longer needed
Internet BrowsingRetain until no longer needed
Meeting ArrangementsRetain until no longer needed
Meeting Materials (Members' Copies/Notes)Retain until no longer needed
Meetings (Staff and Internal Committees)Retain for 2 years after end of calendar year and until no longer needed for university business
Organizing/Monitoring Work In ProgressRetain until no longer needed
Provision of Advice, Assistance, or InformationRetain for 2 years after communication received or provided, whichever is later
Reference MaterialsRetain until no longer needed
Reporting Internally (Routine Program/ Project/Work Unit Reports/Statistics)Retain for 2 years after end of fiscal year
Requests for Basic/Routine University InformationRetain until no longer needed
Scheduling (Appointments/Meetings)Retain until no longer needed
Unsolicited Additional MaterialsUpon receipt, return to sender or destroy
Work Instructions/Desk ManualsRetain until superseded
Applications/Systems -- Implementation ProjectsRetain for 6 years after end of project
Applications/Systems -- Technical DesignRetain until application or version is no longer needed for University business and all records within the application have been migrated/ deleted/ transferred in accordance with a current approved records retention schedule, then destroy
Audit Trails and System Usage MonitoringRetain for 1 year after date of activity
Authorization (Systems/Telecommunications Access)Retain for 6 years after end of fiscal year in which user account/access was terminated
Automated/Scheduled Tasks and Work/ Intermediate/Test FilesRetain for 30 days after date of document
Backups for Disaster Preparedness / RecoveryRetain until no longer needed
Helpdesk RequestsRetain until finalization of request
Network (Design and Build)Retain until no longer needed
Server LogsRetain for 1 month after date of daily record
Inventories (Supplies, Commodities, and Parts)Retain for 6 years after end of fiscal year
Celebrations/Ceremonies/Events (Routine)Retain until no longer needed
Celebrations/Ceremonies/Events (Significant)Retain until no longer needed for University business, then Transfer to Archives for appraisal and selective retention
General Information (External)Retain until no longer needed
Online Content ManagementRetain for 1 year after online content removed
Training (Arrangements)Retain until no longer needed
Training (Development)Retain until no longer needed
Training (General)Retain for 3 years after training provided
Training (Mandatory or Certification/Hours/Credit Provided)Retain for 6 years after training provided
Security Incidents and Data/Privacy BreachesRetain for 6 years after matter resolved
Security Monitoring (No Incident)Retain for 30 days after date record created or until determined that no security incident has occurred, whichever is sooner

Monitor Your Microsoft Storage Use

Create a streamlined, uninterrupted Microsoft experience during your time at WSU by regularly checking your storage usage for Outlook and OneDrive to help you stay within your provided limits.

To ensure you have the opportunity to manage your storage usage accordingly, Microsoft will also provide warning messages within Outlook, OneDrive, Teams, and SharePoint when you are close to or have met your storage limit.

Outlook for Windows

  1. Open the Outlook app on your Windows device.
  2. In the top ribbon, select the File tab.
  3. Select the Tools option.
  4. Select Mailbox Cleanup.
  5. Select View Mailbox Size to view your Outlook folder sizes.

Outlook for macOS

  1. Open the Outlook app on your Mac device.
  2. In the folders list panel, Ctrl+Click your WSU email address.
  3. Select Properties.
  4. Select the Storage tab to view your Outlook folder sizes.

Outlook on the Web

  1. Sign in to Outlook on the Web with your WSU credentials.
  2. In the top right, select the Settings (Gear) icon.
  3. Select the General tab.
  4. Select Storage to view your remaining Outlook storage and your folder sizes.

OneDrive Online

  1. Sign in to OneDrive Online with your WSU credentials.
  2. Scroll to the bottom of the left navigation menu to find the Storage section.
  3. Review your available storage and select your usage value to view your largest OneDrive files.

OneDrive for Windows

  1. Select the OneDrive icon in the Windows notification area and select Settings.
  2. Review your available storage and select the Manage Storage option to view your largest OneDrive files.

Please Note: Files stored in a Microsoft Team are housed in a SharePoint Online Site. To access Teams storage information, you must be an owner of the Team. You can check the corresponding SharePoint Online Site for your Team with the following instructions.

  1. Sign in to Microsoft 365 with your WSU credentials.
  2. In the top left corner, select the app launcher (icon with nine dots).
  3. Select SharePoint.
  4. Find and select the site to your Team or SharePoint space.
  5. On the left navigation menu, select Site Contents.
  6. Select Site Settings.
  7. In the Site Collection Administration section, select Storage Metrics.

Reduce Your Microsoft Storage

Remain within your Outlook and OneDrive storage quotas by regularly reviewing, clearing, and transferring documents and files. Please consider incorporating the following strategies into your workflow reduce your WSU Microsoft storage usage.

Delete Files and Messages

Prioritize deleting large, outdated, or unnecessary files, including videos, images, large data exports, or older project presentations.

Reminder: Please ensure compliance with university records retention and disposition policies prior to deleting any data in Microsoft.

If you have large amounts of data in Outlook, OneDrive, Teams, or SharePoint, please delete only 5 GB of data at a time or 5,000 files or messages at a time, whichever is encountered first. Before continuing to delete items, ensure that you empty the OneDrive recycle bin and purge emails from the Recover Deleted Items option in Outlook (review general online instructions for securely deleting emails).

Clear Deleted Items Folder and Recycled Bin

Permanently delete emails in your Deleted Items folder in Outlook and all items in your OneDrive recycle bin.

Reminder: Please ensure compliance with university records retention and disposition policies prior to deleting any data in Microsoft.

Deleted emails from your primary inbox or other mailbox folders are sent to your Deleted Items folder in Outlook, and deleted OneDrive files remain in your recycle bin for 93 days. These continue to occupy Outlook and OneDrive storage until Microsoft automatically deletes the items.

After deleting any large, outdated, or unnecessary items, review your Deleted Items folder and your recycle bin, and then permanently delete all data to increase available storage space in both services.

Delete Duplicate Documents

Review Outlook and OneDrive for duplicate copies of the same document. If duplicates are found, retain the original and final versions, and delete inactive or irrelevant copies.

Reminder: Please ensure compliance with university records retention and disposition policies prior to deleting any data in Microsoft.

You are not required to retain working versions of a single document that is focused on one specific topic. Delete duplicate files that are no longer being used or updated, and ensure you retain the original first version of a document and the final version of a document if applicable.

WSU Email Online Archive

WSU offers an opt-in online archive service in Outlook that automatically stores emails older than six months and does not occupy space within your Outlook storage quota.

The online archive appears alongside your other mailbox folders in Outlook. The following instructions can help you access your online archive:

Outlook for Desktop

  1. Open the Outlook app on your Windows or Mac device. 
  2. In the folder list panel, locate the Online Archive option.
  3. Expand the Online Archive folder and select the Inbox subfolder. 

Outlook on the Web

  1. Sign in to Outlook on the Web with your WSU credentials. 
  2. In the folder list panel, locate the In-Place Archive option. (Note: Outlook on the Web labels the online archive as In-Place Archive.)
  3. Expand the In-Place Archive folder and select the Inbox subfolder.
Please Note: Outlook for Mac, Outlook for Mobile, and Outlook for the Web only support the mail module. Archived calendar items, tasks, or notes will only be viewable in Outlook for Windows; these items are not viewable in the online archive mailbox via other Outlook versions.

You are strongly encouraged to manually move any emails located in your primary inbox to your online archive if they have not yet been automatically moved. This will ensure your primary inbox stays clutter-free and keeps your Outlook storage usage low.

If you are interested in gaining access to an email online archive, please contact your local IT support team or Crimson Service Desk at crimsonservicedesk@wsu.edu or 509-335-4357 for additional information.

Compress Documents and Images

Convert documents and images to different file types to greatly reduce their size while maintaining the same level of quality.

Zipped (compressed) files take up less storage space and can be shared more quickly than uncompressed files. Review instructions for zipping and unzipping files.

PDF files also significantly reduce the size of a Microsoft document. Learn more about using Adobe Acrobat with OneDrive.

When compressed correctly based on the intended use, such as in web pages or e-mail, image files can maintain reasonable image quality at a relatively small size. Learn how to compress images with Adobe or compress images with Microsoft Picture Manager.

Transition to Microsoft Teams

Transfer files from your Outlook or OneDrive to Microsoft Teams. The WSU Teams environment offers additional storage capacity and various privacy options to protect your documents as needed.

Using Teams as an alternative, cloud-based repository for documents or files allows you to reduce your storage usage for Outlook and OneDrive.

For documents you can share, move them to an existing departmental Team. You can transfer your files to an existing location within the Team, create a new standard channel visible to all members, or create a private channel for individual access.

Please Note: Documents created and hosted in a Team can only be viewed by Team members and are not visible to individuals who are not members of that Team.

You can also request a new Team for your team or department, or for your personal access if you are interested in a dedicated space.

Review additional Microsoft Teams support resources.

On-Premise File Servers

Offload and archive Outlook and OneDrive data in secure, physical servers located across WSU and managed by various university IT teams.

On-premise file servers allow you to store PST files of exported older emails, large or infrequently accessed files, file backups, and previous versions of a file so you can keep only the most necessary data in your Outlook and OneDrive storage.

Please contact your local IT support team or Crimson Service Desk at crimsonservicedesk@wsu.edu or 509-335-4357 for assistance accessing a WSU on-premise server for Microsoft data management.

WSU-Authorized Cloud Storage Services

Transition away from Microsoft services and store your documents or files in alternative, university-approved cloud storage services.

WSU provides limited access to additional cloud storage services such as Amazon Web Services and more. Please contact your local IT support team or Crimson Service Desk at crimsonservicedesk@wsu.edu or 509-335-4357 for assistance accessing advanced cloud storage services.

Project Management Services

Track and store project-related documents, files, and other data in university-approved project management services that are separate from the WSU Microsoft environment.

WSU providesaccess to project management software such as Jira, Confluence, and more. Please contact your local IT support team or Crimson Service Desk at crimsonservicedesk@wsu.edu or 509-335-4357 for assistance determining which project management services best serves your needs.

Local Computer Storage

Store Outlook and OneDrive data locally on your WSU computer or other university-owned device.

Transfer your data out of the WSU Microsoft cloud environment by downloading information from Outlook and OneDrive to a secure, local location directly to your WSU-owned device.

Use of external, local storage devices such as flash drives is cautiously recommended as these devices can be easily misplaced or compromised.

Learn how to download files from OneDrive.

Frequently Asked Questions

Your available OneDrive and Outlook storage is assigned based on the type of WSU Microsoft license you have. Licensing is automatically distributed in alignment with your WSU affiliation. For any questions regarding your WSU Microsoft license, please contact your local IT support team.

If your WSU OneDrive exceeds your maximum storage limit, OneDrive will be restricted to read-only access and you will be unable to upload, edit, or sync new and existing files until your storage usage is reduced.

If your WSU mailbox exceeds your maximum storage limit, you will be unable to send and receive emails, and messages sent to your WSU email address will bounce back to the sender.

Check your storage usage for Outlook and OneDrive by following the steps outlined in the Monitor Your Microsoft Storage Use section of this resource.

Prioritize deleting large, outdated, or unnecessary files, duplicate documents, and items in your Deleted Items folder and Recycle Bin. Always ensure compliance with WSU records retention policies before permanently deleting any files.

If you accidentally delete important files or emails, check your Deleted Items folder in Outlook or the Recycle Bin in OneDrive and restore the needed item as soon as possible. Please be aware that files can be restored from these locations within a certain period.

Online archives hosted in Outlook for Mac, Outlook for Mobile, and Outlook for the Web only support the mail module. Outlook for Windows allows you to view archived mail, along with archived calendar items, tasks, or notes.

At this time, archived calendar items, tasks, or notes are not accessible via the online archive mailbox in Outlook for Mac, Outlook for Mobile, and Outlook for the Web.

Review the all-university records retention schedule or the department records retention schedules to view records series requirements. You may also contact your supervisor for assistance connecting with your unit’s WSU records coordinator.

Please contact your local IT support team or Crimson Service Desk via email at crimsonservicedesk@wsu.edu or 509-335-4357.