Fix Windows Error 0x80070005 - Access Denied

This error occurs when Windows lacks proper permissions for files, folders, or Windows Update. Follow these step-by-step solutions.

Solution 1: Run as Administrator

For Applications:

1. Right-click the program shortcut or .exe file
2. Select "Run as administrator"
3. Click "Yes" on User Account Control prompt

For Windows Update:

1. Press Windows + R, type "services.msc"
2. Find "Windows Update" service
3. Right-click and select "Run as administrator"

Solution 2: Check Folder Permissions

1. Navigate to the problematic folder
2. Right-click → Properties → Security tab
3. Click "Advanced" → "Change" next to owner
4. Enter your username → Check "Replace owner on subcontainers"
5. Click OK and Apply

Solution 3: Use Windows Update Troubleshooter

1. Go to Settings → Update & Security → Troubleshoot
2. Select "Windows Update" → "Run the troubleshooter"
3. Follow on-screen instructions
4. Restart computer when prompted

Solution 4: Reset Windows Update Components

Run these commands in Admin Command Prompt:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

Solution 5: Check Disk Space

Ensure minimum free space:

• Windows 10/11: 32GB free space required
• System drive (usually C:) should have 20% free space
• Use Disk Cleanup to free space

Prevention

• Regularly run Windows Update
• Keep antivirus updated but not overly restrictive
• Create system restore points before major changes
• Use standard user account for daily use, admin only when needed