When you run Disk Cleanup in Windows, you might notice large files such as System Error Memory Dump Files and Delivery Optimization Files. Naturally, these files can take up several gigabytes of storage. So, the big question is: Should you delete them?
In this guide, we’ll explain what these files are, when to keep them, and when it’s perfectly safe to remove them.
What Are System Error Memory Dump Files?
First of all, System Error Memory Dump Files are created when Windows crashes—commonly known as a Blue Screen of Death (BSOD). These files store diagnostic data, which helps identify what caused the system failure.
There are different types of memory dump files:
- Complete Memory Dump – Stores all data in RAM at the time of the crash
- Kernel Memory Dump – Saves only essential kernel data, so it’s smaller
- Small Memory Dump (Minidump) – Contains limited data but is often enough for troubleshooting
In short, these files are mainly useful for debugging and technical analysis.
Should You Delete Memory Dump Files?
In most cases, yes—it is safe to delete memory dump files. However, the decision depends on your situation.
✅ Keep These Files If:
- Your system recently crashed and you are troubleshooting
- You plan to share the file with Microsoft Support or an IT professional
- You use debugging tools like WinDbg
❌ Delete These Files If:
- Your PC is running normally without crashes
- You need to free up disk space quickly
- The issue has already been resolved
👉 Tip: For everyday users, these files are rarely needed after the issue is fixed.
What Are Delivery Optimization Files?
Next, let’s talk about Delivery Optimization Files. These are temporary files used by Windows Update to speed up downloads.
Essentially, Windows can share update files between devices—either on your local network or over the internet. As a result, updates download faster and use less bandwidth.
Can You Delete Delivery Optimization Files?
Yes, deleting these files is completely safe. Windows will automatically download them again if needed.
✅ Keep These Files If:
- You have multiple PCs and want faster updates
- You frequently install Windows updates
- You want to reduce bandwidth usage across devices
❌ Delete These Files If:
- You are low on storage space
- Your system is already up to date
- You don’t share updates across devices
👉 In general, most home users can safely remove these files without any impact.
How to Delete These Files Using Disk Cleanup
Fortunately, removing these files is quick and easy.
- Press Win + R, type
cleanmgr, and press Enter - Select your C: drive, then click OK
- Click Clean up system files
- Check:
- System error memory dump files
- Delivery Optimization Files
- Click OK, then confirm deletion
Alternative Method: Use Storage Sense
Alternatively, you can use Windows Settings:
- Go to Settings > System > Storage
- Click Temporary files
- Select:
- System error memory dump files
- Delivery Optimization Files
- Click Remove files
This method is simple and works well for regular cleanups.
Final Verdict: Should You Delete These Files?
Overall, deleting these files is safe for most users and can free up valuable disk space.
- Keep memory dump files only if you’re diagnosing a crash
- Keep delivery optimization files if you rely on shared updates
- Otherwise, delete both to reclaim storage and improve system efficiency
Want More Windows Optimization Tips?
If you found this guide helpful, check out more tutorials on core365.cloud. You’ll discover practical tips to boost performance, free up disk space, and keep your Windows system running smoothly.
