DiskPart UI v1.0.1

🐞 Fixes the app not starting after installation

If you installed v1.0.0 with the installer, the app failed on launch with
"We couldn't create the data directory". WebView2 put its data folder next to the
executable, and under C:\Program Files\ that location is read-only.

It now stores that data in %LOCALAPPDATA%\DiskPartUI\WebView2. Anyone on v1.0.0 should
update. Uninstall v1.0.0 first, then install this build.

The installer's automated test now launches the installed app and verifies the WebView starts,
so this class of failure can't ship again.

Also in this release: internal cleanup (dead code removed, 24 unit tests up from 18) and the
app icon / splash color made consistent.

Downloads

File	What it is
DiskPartUI-v1.0.1-setup.exe	Installer — installs to Program Files, adds Start Menu (and optional desktop) shortcuts, and registers an uninstaller.
DiskPartUI-v1.0.1-win-x64.zip	Portable build — unzip anywhere and run DiskPartUI.exe.

Both are self-contained: no .NET runtime and no Windows App SDK install needed.

Requirements

• Windows 10 (1809 / build 17763) or later, x64
• Administrator rights — diskpart cannot run unelevated, so the app requests it at launch (one UAC prompt)

🔒 Security warning on launch

These builds are not code-signed, so Windows SmartScreen shows an "unknown publisher" warning the first time you download or run them. That's expected for an unsigned app — a reputation check, not a sign anything is wrong. To get through it:

• Download: choose Keep / Keep anyway if the browser flags it.
• Launch: on the blue "Windows protected your PC" dialog, click More info → Run anyway.
• UAC prompt: it shows Publisher: Unknown — choose Yes.

Verify your download (SHA-256)

DiskPartUI-v1.0.1-setup.exe     775258389BC012E41B9A387D229F092EDEB8CF49033617D17E1D425C4062B106
DiskPartUI-v1.0.1-win-x64.zip   8473700D01EEC83463EE48AECBF2E069E4919EB919DC9035D3BE441896E5F17A

Get-FileHash .\DiskPartUI-v1.0.1-setup.exe -Algorithm SHA256

If the hash matches, the file is byte-for-byte the published build. See the README for more.

What's in it

• Live view of disks, partitions and volumes, parsed from diskpart's own output
• Point-and-click script builder — every action becomes visible diskpart commands you review before anything runs
• Confirmation gate before executing, with an explicit destructive-data warning
• Per-item Actions menu on every disk / volume / partition row
• Open / save the generated script
• Resizable, persisted layout; light / dark theme aware

⚠️ Warning

clean, delete and format permanently erase data and there is no undo. Always confirm the selected disk before running a script. Use at your own risk.