Windows 8: 100% SSD Activity, 0 R/W Speed: System Hang Issue
Solution 1:
Please try to boot in Safe mode and see if the issue persists.
If it does not, that means a program or service from startup is using the disk.
This could either be a malicious program or an antivirus/antimalware program such as Malwarebytes. Next steps would be to go to:
- task manager -> startup -> check for dubious programs and then antiviruses
- msconfig -> services -> hide all microsoft services -> check for dubious services and disable them.
If you cannot figure it out, just disable everything in both settings then start enabling them one by one and restart. When the issue comes back, you found the culprit.
Incorrect cable connection or faulty cable does not cause 100% disk usage, it causes disk errors (first hand experience with this) and windows explorer hanging while accessing files / writing to disk.
A few other options to try is to:
- disable windows defragmenter
- disable indexing service
- disable system restore or decrease the size allocated to it
- enable write caching from device manager