Error 0x80070070

How to Fix Windows Upgrade Error 0x80070070

Fix time: 10 mins Difficulty: Easy 0 views Updated: July 2026

Clear storage space to resolve disk space install error 0x80070070.

Symptoms

Update fails and notifies there is not enough space on system drive

Common Causes

Less than 20GB of free space on partition C:

Step-by-Step Solutions

Method 1: Run Disk Cleanup tool

Type Disk Cleanup in Start, open it, select Drive C.
Click Clean up system files.
Select Temporary Installation Files and click OK.

Frequently Asked Questions

We recommend keeping at least 30GB free for safe upgrade installations.