AccuInfo
NewEverything about a laptop battery · v1.0.2
Reads what ordinary tools do not show — manufacturer, serial number, design and full-charge capacity, cycles and temperature. Turns battery health into a document you can hand to a customer.
Portable software for IT pros and everyday users
Small tools that
Small tools that
do one thing properly.
- 9applications
- 100 %portable
- 0trackers
Software & utilities
Everything here is my own work for 64-bit Windows. Most tools target Windows 10 and 11; each one states what it runs on. Every build lists its version, size and checksum.
The event log, explained · v1.0.2
Goes through the event logs, explains the errors in plain language and proposes a concrete fix with commands for each. Scores the health of the machine and saves it all as a report.
HWInf
NewA complete hardware inventory · v1.0.1
What board, processor, memory, disks and graphics are in the machine — in one readable table instead of clicking through msinfo32. The whole inventory saves as an HTML report or a text file.
LANtester
NewNetwork adapter stress test · v1.0.0
Continuously reads data from an SMB/UNC share, pings the peer at the same time and plots both as live charts. It exposes dropouts, throughput collapses and latency spikes under sustained full load.
PrinterAdmin
NewA printer list you can actually search · v1.0.0
Every installed printer in one list — with manufacturer, model, address and, above all, whether the printer answers at all. The searching, sorting and filtering the control panel does not offer.
A two-panel file manager · v1.1.2
A Total Commander-style file manager you can run entirely from the keyboard. Copy, move and delete in the background with progress, an F3 viewer, an editor per file type, folder history and a dark mode.
PCHealthLab
NewHardware and Windows diagnostics with repairs · v1.0.2
Checks the battery, disks, CPU and GPU under load with temperatures, RAM, system integrity and security. Sorts the findings by severity and offers a one-click repair for many of them.
MHCleaner
NewTemporary files and cache cleanup · v1.0.1
A cleaner for temporary files and caches. Every item carries a risk level and a sentence on what you lose. Everything is measured first and deleted only after a confirmation.
MHView
NewA fast picture viewer · v1.0.0
An XnView-style picture viewer without the clutter: folder tree on the left, thumbnails on the right, a double click opens the picture across the window. JPEG, PNG, HEIC and more; it never writes to your files.
Nothing like that here yet. Try another term.
Rules I stick to
Fast and light
Native code, half-second startup, hundreds of kilobytes instead of hundreds of megabytes.
No tracking
The apps collect nothing about you or your machine. At start they ask mhsw.net once for a newer version — sending just the program name and version, nothing else — and even that can be switched off.
Portable by default
No installer, no registry writes. Unpack onto a USB stick and take it with you.
Open formats
Readable JSON/INI config, CSV export. Nothing locks you in.
Long support
Fixes and security patches for older releases too. Nothing gets dropped after a year.
Verifiable builds
Every file ships with a SHA-256 computed on the server, so you can verify what you run.
What’s new
A short summary of the latest releases.
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AccuInfo 1.0.2 26 October 2026
Battery health no longer exceeds 100 %
New or freshly calibrated packs report a full charge a few percent above the design figure, so health came out over 100 %. It is now capped at 100 %; the raw capacities stay visible in the table.
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MHCleaner 1.0.1 26 October 2026
Safer cleaning and fixes after a thorough review
Thirteen bugs fixed after an audit of the app: a %TEMP% sanity check, an age filter that reads the creation date, stopping without losing results, a report after cleaning and catalogue corrections.
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PCHealthLab 1.0.2 23 October 2026
A Stop button, one-click repairs and findings sorted worst first
The main window is easier to drive: a running test can be stopped, findings are sorted by severity with a tally on top, and a repair starts with one click right in the finding's row.
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PCHealthLab 1.0.1 23 October 2026
No more apparent freeze at the start of the CPU test, sharper Event Log findings
On some domain-joined PCs the CPU test stalled for minutes right after it started, waiting for Windows performance counters. Every read now has a time limit and the app says what it is waiting for.
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EventAnalyzer 1.0.2 18 October 2026
Fixing what only looked like it worked
A full review of the application: the chain of events before a crash is actually built for the first time, the service, chkdsk and Windows Update repairs do what they promise, and the app says out loud what it cannot see without administrator rights.
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HWInf 1.0.1 18 October 2026
Right data without admin rights, a window with nothing cut off
TPM, firmware mode and the power plan are now read in ways that hold for a standard user, and the window scales to 125 and 150 %, so nothing gets clipped.
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MHCommander 1.1.2 15 October 2026
Bug fixes and optimisations
Several bugs in copying, moving, packing and deleting are fixed, and the window no longer freezes on a network drive that does not answer.
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MHCommander 1.1.1 15 October 2026
The computer stays awake in the middle of a copy
While MHCommander copies, moves, packs or deletes, Windows does not go to sleep. After waking up, a disk or a share might not come back and the running copy froze.
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MHCommander 1.1.0 15 October 2026
Pack to ZIP and paths longer than 260 characters
Alt+F5 packs the marked files and folders into a ZIP. Folders deeper than 260 characters can be opened, viewed and copied.
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MHCommander 1.0.9 15 October 2026
No more freeze on a sleeping drive
The window responds and draws in full right after start, even while a network drive or an optical drive is still waking up.
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MHCommander 1.0.8 13 October 2026
Folders full of programs open fast
A folder full of installers (Downloads, typically) opens at once instead of after several seconds.
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PCHealthLab 1.0.0 30 September 2026
First release: hardware and Windows diagnostics with repairs
Six diagnostic areas in a quick or a long test, findings sorted by severity, and a Fix Engine with repairs that asks first before the riskier steps.
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MHCommander 1.0.7 30 September 2026
Delete and copy in the background, folder history
Delete and copy can go straight to the background with visible progress, and a network drive is cleared quickly in parallel. New: folder history and Shift+F4 for a new file.
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MHCommander 1.0.6 30 September 2026
A more modern look and an editor per file type
Dark mode is dark right up to the title bar, the active panel has a soft blue glow and the buttons are smaller and rounded. F4 can open each file type in its own editor, text files in UltraEdit for example.
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MHCommander 1.0.5 30 September 2026
Background copying and typing straight into the command line
Copies can go to the background while you keep working, the panels fill up while a copy runs, and typing on the list goes straight to the command line, the way Total Commander does it.
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MHCommander 1.0.4 29 September 2026
Favourite folders, Start menu and dark scrollbars
Ctrl+D opens favourite folders – jump with 1–9, add the current folder and edit the list. The app can add itself to the Start menu, scrollbars are dark in dark mode and the needless horizontal scrollbar is gone.
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EventAnalyzer 1.0.1 16 September 2026
See what a repair actually fixed
After a catalogue repair (SFC, DISM) runs, the app now shows what it actually found, and the next scan checks whether the errors that triggered the repair have stopped appearing in the event log.
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MHCommander 1.0.3 15 September 2026
Settings that survive a restart, a filter, a command line and the clipboard
Settings are kept in MHCommander.ini; new are a list filter (Ctrl+S), a command line under the panels, Explorer-compatible clipboard and drag & drop, rename in place, folder sizes, and a viewer with encoding detection and search.
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AccuInfo 1.0.1 15 September 2026
Fixes and small improvements
A maintenance release: bug fixes and small improvements from the first weeks in use. Size and requirements are unchanged.
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MHCommander 1.0.1 14 September 2026
Copy and move are finished
F5 (copy) and F6 (move / rename) work and have been tested, on a custom CopyFileEx engine with optional parallel copying. The app is no longer beta.
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MHCleaner 1.0.0 12 September 2026
First public release
Cleans temporary files and caches from Windows, browsers and applications. Every item carries a risk level and an explanation of what is lost; it measures first and deletes after a confirmation.
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EventAnalyzer 1.0.0 11 September 2026
First public release
Event log diagnostics: repeated errors merged, plain-language explanations, a catalogue of fixes with scripts and an HTML report with a verdict.
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PrinterAdmin 1.0.0 11 September 2026
First public release
An overview of installed printers with availability checks, search and filters. Runs on Windows 7 SP1 and 8.1 as well.
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AccuInfo 1.0.0 10 September 2026
First public release
A service tool for laptop batteries: complete data over IOCTL, live charge and power charts and a self-contained HTML report.
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MHCommander 1.0.0 10 September 2026
First public beta
A keyboard-driven two-panel file manager. Copy and move are missing so far; the other keys work.
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HWInf 1.0.0 10 September 2026
First public release
A hardware inventory in fourteen categories with search across all of them, HTML and text export, and a five-second scan.
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LANtester 1.0.0 9 September 2026
First public release
A network adapter stress test over SMB with live throughput and latency charts and a self-contained HTML report export.
Frequently asked
Is the software really free?
Yes. Every tool is free for personal and commercial use.
Why is the software free?
Because I enjoy making it. The tools come out of my own needs, and then there is no reason not to share them. If one of them helped you, I would be glad for a coffee. It is entirely optional and changes nothing about the software: everything stays free.
Why does Windows show a SmartScreen warning?
SmartScreen reports an unknown file, not a virus it found. The applications here are not digitally signed, so they have no reputation with Microsoft. Always check the SHA-256 listed with the download — if it matches, you have exactly the file I released. The Is MHSW safe? page explains it in full.
Do you collect any data?
No. The apps have no analytics and no background auto-updates. This site runs without third-party cookies.
Will there be Linux or macOS builds?
No. I build exclusively for Windows. I would rather know one system properly than three by halves — that is what lets the tools call Win32 directly and stay small and fast. Most of them target Windows 10 and 11; where it makes sense they also run on older versions.
Can I report a bug or suggest a feature?
Please do. Write to info@mhsw.net with the app version and a short description of the steps.
Who is behind MHSW
Marian Hudec - a software engineer and developer based in the Czech Republic. Alongside my own applications I work in hardware and software service — and that everyday practice is exactly where the tools you find here come from.
Software development
Native applications and utilities for Windows. From the first idea to a finished build with a checksum you can verify yourself.
Hardware service
Diagnostics, repairs and upgrades of desktops, laptops and peripherals. Bench experience, not textbook theory.
Software service
System installation and maintenance, data recovery, troubleshooting Windows, networks and printers.
A question about one of the tools, or a service problem to solve? Write to info@mhsw.net.
Missing a utility?
Tell me what you need on Windows. A lot of the tools here started exactly like that — from one specific problem.