How to Map SharePoint as a Network Drive: 3 Methods for 2026

Method 1: OneDrive Sync (Recommended)

OneDrive sync is the Microsoft-recommended approach for accessing SharePoint document libraries from File Explorer. It provides real-time synchronization, offline file access, and eliminates the authentication issues that plague WebDAV connections. OneDrive sync uses modern authentication (OAuth 2.0), supports files up to 250GB, and handles conflict resolution automatically.

Method 2: WebDAV Drive Mapping

WebDAV (Web Distributed Authoring and Versioning) allows you to assign a traditional drive letter (like Z:) to a SharePoint document library. While this method is familiar to users transitioning from on-premises file shares, Microsoft no longer recommends it for SharePoint Online due to frequent authentication failures, slow performance over high-latency connections, and a default 50MB file size limit.

https://yourtenant.sharepoint.com/sites/YourSiteName/Shared%20Documents

Method 3: PowerShell Script for Drive Mapping

For IT administrators deploying drive mappings at scale, PowerShell provides scriptable automation. The net use command and New-PSDrive cmdlet can map SharePoint libraries programmatically. This method is useful for login scripts, Intune remediation scripts, or scheduled tasks.

Basic net use Command

Map a SharePoint library to drive letter S: using the Windows net use command:

# Map SharePoint document library to S: drive
net use S: "\\yourtenant.sharepoint.com@SSL\DavWwwRoot\sites\YourSiteName\Shared Documents" /persistent:yes

# Verify the mapping
net use S:

PowerShell Script with Error Handling

A production-ready script that maps the drive, handles errors, and ensures the WebClient service is running:

# SharePoint Drive Mapping Script
# Requires: WebClient service, authenticated browser session

$driveLetter = "S:"
$sharePointUrl = "\\yourtenant.sharepoint.com@SSL\DavWwwRoot\sites\YourSiteName\Shared Documents"

# Ensure WebClient service is running
$webClient = Get-Service -Name WebClient
if ($webClient.Status -ne "Running") {
    Start-Service -Name WebClient
    Write-Host "Started WebClient service"
}

# Remove existing mapping if present
if (Test-Path $driveLetter) {
    net use $driveLetter /delete /yes
    Write-Host "Removed existing drive mapping"
}

# Create the drive mapping
try {
    net use $driveLetter $sharePointUrl /persistent:yes
    Write-Host "Successfully mapped $driveLetter to SharePoint"
} catch {
    Write-Error "Failed to map drive: $_"
    Write-Host "Ensure you are authenticated to SharePoint in your browser"
}

Increase WebDAV File Size Limit via Registry

The default 50MB limit can be increased to 4GB with this registry modification:

# Increase WebDAV file size limit to 4GB (requires admin)
Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\WebClient\Parameters" `
    -Name "FileSizeLimitInBytes" -Value 4294967295

# Restart WebClient service to apply
Restart-Service -Name WebClient -Force

Write-Host "WebDAV file size limit increased to 4GB"

Why Microsoft Recommends OneDrive Sync Over WebDAV

Microsoft officially recommends OneDrive sync for accessing SharePoint files from File Explorer. The comparison below shows why OneDrive sync outperforms WebDAV in every enterprise-relevant category.

Troubleshooting Common Issues

Authentication Errors

The most common WebDAV issue is authentication failure. SharePoint Online requires modern authentication, and WebDAV relies on a browser cookie to establish the connection.

• "The network path was not found" — Verify the WebClient service is running. Open an elevated command prompt and run net start WebClient. Ensure the URL format is correct with @SSL in the UNC path.
• "Access denied" or "403 Forbidden" — Log in to SharePoint in your browser first, then retry the drive mapping. Confirm your account has at least Read permissions on the document library.
• "The specified network password is not correct" — Clear cached credentials in Windows Credential Manager (Control Panel > Credential Manager > Windows Credentials). Remove any entries for sharepoint.com and retry.
• MFA blocking WebDAV — WebDAV does not support interactive MFA prompts. You must complete MFA in the browser first. Consider creating a Conditional Access policy that exempts the WebClient user agent if WebDAV is required organization-wide.

Disconnected Drives

WebDAV-mapped drives frequently show a red X (disconnected) after sleep, restart, or token expiration.

• After sleep or hibernate — The authentication token expires during sleep. Open the SharePoint site in your browser to re-authenticate, then double-click the drive to reconnect.
• Red X on startup — WebDAV drives mapped with /persistent:yes attempt to reconnect at login but fail if the WebClient service starts too slowly. Add a login script that starts WebClient before the drive mapping.
• Intermittent disconnections — Increase the ServerNotFoundCacheLifeTimeinSec registry value from 30 to 0 at HKLM\SYSTEM\CurrentControlSet\Services\WebClient\Parameters. This prevents Windows from caching failed connection attempts.

Slow Performance

WebDAV transfers files synchronously over HTTPS, making it noticeably slower than OneDrive sync for large files or bulk operations.

• Slow file browsing — WebDAV queries the server for each folder listing. Reduce the number of files per folder (under 5,000) or switch to OneDrive sync with Files On-Demand.
• Large file transfers timing out — Increase the SendTimeout and ReceiveTimeout registry values at HKLM\SYSTEM\CurrentControlSet\Services\WebClient\Parameters. Set both to 0x000493E0 (300000 milliseconds / 5 minutes).
• OneDrive sync stuck — Right-click the OneDrive icon, select "Pause syncing," wait 30 seconds, then resume. If stuck on a specific file, check for file name or path length issues (max 400 characters total path).

Enterprise Considerations

Group Policy Deployment

For organizations managing hundreds or thousands of devices, manual drive mapping is impractical. Use Group Policy or Intune to automate SharePoint access across your environment.

• OneDrive ADMX Templates — Download the OneDrive Group Policy templates from Microsoft. Key policies include "Silently sign in users to the OneDrive sync app" (prevents user prompts), "Configure team site libraries to sync automatically" (auto-syncs specific SharePoint libraries), and "Use Files On-Demand" (saves disk space).
• GPO Drive Mapping — Use Group Policy Preferences > Drive Maps to create WebDAV mappings. Target by security group to limit mappings to specific departments. Use item-level targeting to filter by OS version or OU.
• Login Scripts — Deploy PowerShell login scripts via GPO that start the WebClient service and execute net use commands. Include error handling and logging for troubleshooting.

Microsoft Intune Policies

For modern device management without on-premises Active Directory, Intune provides cloud-native configuration for OneDrive and SharePoint access.

• OneDrive Configuration Profiles — Create an Intune configuration profile using the Settings Catalog. Search for "OneDrive" and configure: silent sign-in, auto-sync libraries by tenant ID and library ID, Files On-Demand, and Known Folder Move.
• Known Folder Move (KFM) — Redirect Desktop, Documents, and Pictures folders from local storage to OneDrive. This ensures all user files are automatically backed up to the cloud without requiring users to change their workflow.
• Remediation Scripts — Use Intune proactive remediation scripts to detect and fix broken drive mappings. A detection script checks for the mapped drive; a remediation script re-creates it if missing.

Security and Compliance

Enterprise SharePoint deployments must consider data protection, DLP, and conditional access when enabling drive mapping.

• Conditional Access — Configure Microsoft Entra Conditional Access policies to restrict OneDrive sync to compliant, domain-joined, or managed devices only. This prevents data leakage to personal devices.
• Data Loss Prevention (DLP) — OneDrive sync respects Microsoft Purview DLP policies. Sensitive files tagged with sensitivity labels can be blocked from syncing to non-compliant devices. WebDAV does not support DLP enforcement.
• Audit Logging — OneDrive sync activities appear in the Microsoft 365 Unified Audit Log. WebDAV access is harder to track. For HIPAA-compliant environments, OneDrive sync provides the audit trail required by regulators.

Need Help with SharePoint Drive Mapping at Scale?

EPC Group has deployed OneDrive sync and SharePoint access solutions for organizations with 10,000+ users. Our SharePoint consulting team handles GPO configuration, Intune policy deployment, and SharePoint migration services including legacy mapped drive transitions. As a Microsoft ecosystem firm with 25+ years of experience, we ensure your deployment is secure, compliant, and maintainable.