Free tools Windows power users keep installed
One-click scans. No signup required.
Some links on this page are affiliate links: if you buy through them we may earn a commission, at no extra cost to you.
The Run dialog can open Windows diagnostics, printer tools, configuration panels and other utilities without a trip through Settings. But the 19 commands in HTMD Blog’s July 2024 list are not all equally current: some remain handy, some are specialist tools, and others are legacy, deprecated or dependent on hardware and Windows components.
Press Windows + R, enter a command and press Enter. Run does not grant administrator rights; a tool may open but still require elevation for privileged changes. Availability and behavior can vary by Windows edition, build, policy and installed components.
Quick reference: the 19 commands
Use the status labels as a guide, not a guarantee that every command is present on every Windows 10 or 11 PC. Save work before starting anything that may restart the computer, and use the modern alternative when a legacy utility is unavailable.
| Command | What it opens or does | Best suited to | Access and caveats | Status |
|---|---|---|---|---|
azman.msc |
Authorization Manager snap-in | Administrators managing applications or stores that use Authorization Manager | Not a general Windows settings panel; useful only in environments that rely on it. | Specialized / legacy |
bootim |
Reported in the original list as a boot or recovery shortcut | Do not rely on it as a universal startup-settings command | Its behavior is not established here for current Windows builds. Use Settings → System → Recovery or Windows Recovery Environment’s Advanced startup options instead. | Verify before use |
C:WindowsSystem32rundll32.exe sysdm.cpl,EditUserProfiles |
Intended to open User Profiles settings | Only if the entry point works on the installed build | This specific entry point should not be assumed universal. Fallback: run sysdm.cpl and use the System Properties interface. |
Verify before use |
dpapimig |
DPAPI Key Migration Wizard | Specialist migration or administration work | DPAPI is involved in protecting user data and credentials. Do not run a migration tool casually or without understanding the recovery plan. | Specialized |
fontview Font_Name.ttf |
Font preview | Previewing a font file | Requires a font Windows can locate. A full file path is safer for fonts outside standard font folders. | Useful, file-dependent |
isoburn |
Windows Disc Image Burner | Writing a supported disc image to optical media | Requires the relevant component, a writable optical drive and a blank disc; many newer PCs have no optical drive. | Legacy / hardware-dependent |
lpksetup |
Install or uninstall display languages | Older language-pack servicing workflows | The correct command is lpksetup, not the ipksetup typo found in one table in the original article. Current language management is generally through Settings or deployment tools. |
Legacy / specialized |
mdsched |
Windows Memory Diagnostic | Checking memory for errors | Schedules a test during restart. Save work before choosing an immediate restart; a clean result does not rule out every intermittent or platform-level fault. | Useful |
msdt |
Microsoft Support Diagnostic Tool | Legacy diagnostic workflows only | Microsoft marks MSDT as deprecated. Do not treat it as the preferred first-line troubleshooting route. | Deprecated |
odbcconf |
ODBC configuration utility | Database administrators and application-support staff | Not the usual graphical ODBC Data Sources interface. Use only when you understand the configuration task. | Specialized |
perfmon /rel |
Reliability Monitor history | Finding when application crashes, failed updates or other reliability events began | Does not repair a problem; it helps correlate events over time. Some event details may require further investigation. | Useful |
printbrmui |
Printer migration utility | Exporting or importing printer configuration during migration | Depends on available migration components and drivers. Validate queues, ports, drivers and permissions after migration. | Migration-only |
printui |
Printer administration entry point | Printer configuration tasks | For documented PrintUIEntry operations, use rundll32 printui.dll,PrintUIEntry with the appropriate task or arguments. This is not a general printer-repair command. |
Useful for administration |
rundll32.exe sysdm.cpl,EditEnvironmentVariables |
Environment Variables dialog | Editing user or system environment variables | Entry-point behavior can vary. Fallback: run sysdm.cpl → Advanced → Environment Variables. System-level edits typically need administrator rights; an incorrect PATH can disrupt commands and apps. |
Useful, use care |
tabtip |
Tablet PC Input Panel or touch-keyboard component | Some older or touch-enabled configurations | Component and behavior vary by Windows version and device. Windows 11’s touch keyboard is the more relevant modern interface. | Version-dependent / legacy |
wiaacmgr |
Windows Image Acquisition scanner wizard | Starting a scan with compatible hardware | Requires a recognized scanner and suitable driver. Try Windows Scan or the scanner maker’s software if no device is found. | Hardware-dependent |
wmimgmt.msc |
WMI management console | IT diagnostics and WMI administration | Not a general performance dashboard. Changes to WMI settings can affect management and diagnostics; use with care. | Specialized |
wscui.cpl |
Legacy Security and Maintenance interface | Viewing older Security and Maintenance status | It is not the current Windows Security dashboard. Prefer the Windows Security app and relevant Settings pages. | Legacy |
wusa |
Windows Update Standalone Installer | Installing a compatible standalone update package, commonly an .msu file | Not a replacement for Windows Update or a general repair command. Package applicability, architecture, prerequisites and elevation matter. | Useful for a narrow task |
Run commands most people are likeliest to need
Check reliability history: perfmon /rel
Open Run with Windows + R, enter perfmon /rel and press Enter. Reliability Monitor shows a timeline of events such as application failures and some update or hardware-related problems. Look for repeated failures or several problems beginning around the same date, then compare that timing with recent driver, app or Windows changes. The view is a diagnostic clue, not a diagnosis or repair.
#1 Best Overall
- 1.1 GHz (boost up to 2.4GHz) Intel Celeron N5030 Quad-Core
Run a memory check: mdsched
- Enter
mdschedin Run. - Choose Restart now and check for problems or Check for problems the next time I start my computer.
- Save open work before selecting an immediate restart; the test runs outside the normal desktop session.
The test can report memory errors, but a clean result cannot prove that RAM, the memory controller, motherboard or configuration is fault-free in every circumstance. If symptoms continue, further testing may be needed. You can also search Start for Windows Memory Diagnostic to launch the same tool. More detail on the utility is available in HTMD Blog’s Windows Memory Diagnostic guide.
Edit environment variables: use the safer fallback if needed
The listed shortcut is rundll32.exe sysdm.cpl,EditEnvironmentVariables. Because this calls a specific entry point through rundll32, behavior should not be assumed identical on every build. If it fails, run sysdm.cpl, choose Advanced, then Environment Variables.
Rank #2
- 256 GB SSD of storage.
- Multitasking is easy with 16GB of RAM
- Equipped with a blazing fast Core i5 2.00 GHz processor.
- User variables apply to the current account; system variables apply more broadly and usually require administrator rights to change.
- Record existing values before editing. A malformed
PATHcan stop commands or applications from being found. - Already-open applications may need to be closed and reopened before they see a changed value.
Microsoft cautions that rundll32 is for DLL functions specifically designed to be called that way; it is not a universal DLL launcher. See Microsoft’s rundll32 documentation.
Recommended Free Tools
Preview a font: fontview
For example, enter fontview arial.ttf. If Windows cannot resolve the font by name, supply its full path, such as fontview "C:UsersPublicDownloadsExample Font.ttf". A missing file or incorrect path means there is nothing to preview.
Rank #3
- 14" diagonal, 1366x768 resolution, HD BrightView LED, Glossy NON-TOUCH Display
Install a standalone update: wusa
Use Windows Update for normal servicing. wusa is for compatible standalone update packages, not every update or every Windows Update problem. Confirm that the package matches the PC’s architecture and Windows version and meets its prerequisites; installation may require elevation. Do not install packages from untrusted sources.
Printer and scanner tools
printui relates to printer configuration, while Microsoft documents the more explicit PrintUIEntry form rundll32 printui.dll,PrintUIEntry for printer configuration and scripting. Exact tasks require suitable arguments; merely opening an entry point does not fix a printer. For everyday setup, Windows Settings → Bluetooth & devices → Printers & scanners is usually easier to discover.
Rank #4
- EFFORTLESS EVERYDAY PERFORMANCE: Powered by Intel Celeron N4020 processor and Windows 11 Home system, delivering reliable, low-power efficiency for daily tasks like document editing, email, online classes, and web browsing
- 15.6-INCH FULL HD DISPLAY: Enjoy immersive visuals on the 15.6" FHD (1920x1080) anti-glare screen with micro-edge bezels. Delivers clear details and comfortable viewing for long study sessions, working on spreadsheets, and video playback
- RESPONSIVE MULTITASKING & STORAGE: Built with 4GB LPDDR4 RAM and 128GB eMMC storage for smooth daily essential use. Expand your storage by up to 1TB via the integrated TF card slot to easily store movies, photos, and working files
- ADVANCED CONNECTIVITY: Outfitted with 2x Full-Featured Type-C ports for data transfer, fast charging, and dual-monitor output, alongside 2x USB 3.2 Gen1 ports and a 3.5mm audio jack for complete peripheral compatibility
- LIGHTWEIGHT & SILENT OPERATION: Slim and portable for effortless travel or commuting. Features a 1MP HD webcam for remote meetings, 38Wh battery with 45W Type-C fast charging, and a fanless silent design for peaceful work environments.
printbrmui is for printer migration, not routine troubleshooting. Before exporting or importing, document the printer queues, drivers, ports and relevant permissions, then verify each after the move. wiaacmgr starts a scanner workflow only when a compatible, recognized scanner and driver are available. If it reports that no scanner is installed, check the connection and driver, or use Windows Scan or the manufacturer’s app.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
See Microsoft’s PrintUIEntry documentation for the documented printer interface.
Best Value
- 【Efficient Performance】 Powered by Intel Core i3 processor (2 cores, 4 threads, up to 3.4GHz) with 12GB RAM and 256GB SSD. Handles multitasking, office software, online classes, and HD video streaming smoothly. Integrated Intel UHD Graphics 620
- Backlit Keyboard & Complete Package】Comes with a cool backlit keyboard. Comes with awebcam, dual stereo speakers (8Ω/1.0W each), DC charger, and user manual – ready for late-night studying, online classes, video conferencing, and daily productivity
- 【Vibrant Display】 15.6-inch Full HD (1920x1080) anti-glare screen with 16:9 aspect ratio delivers crisp images and vivid colors – perfect for studying, watching lectures, or entertainment. Thin-bezel design maximizes viewing area
- 【Fast Connectivity & Expansion】 Equipped with WiFi 6 (802.11ax) and Bluetooth 5.2 for stable, high-speed wireless. Features 3 x USB 3.0, HDMI 2.1, Type-C (supports PD3.0 fast charging), and a TF card slot expandable up to 2TB – easily connect external monitors, mice, drives, or expand storage for all your files
- 【Long Battery Life & Portable】 Built-in 11.55V 5000mAh/57.75Wh high-capacity battery delivers approximately 7 hours of mixed-use battery life – enough for a full day of classes and assignments. Lightweight at just 1.63kg (3.6 lbs) and 19.5mm thin, plus a compact packing size – easily slips into a backpack for campus, library, or coffee shop
Specialist and legacy entries
azman.msc: Authorization Manager is relevant to particular applications and authorization stores, not ordinary account or Windows security settings.dpapimig: A specialized DPAPI migration utility. Because DPAPI is connected to protected user data and credentials, do not use it as a general application-launch fix or run it without a specific migration plan.odbcconf: A specialist ODBC configuration utility. For routine data-source management, use the appropriate ODBC Data Sources interface and ensure you choose the relevant 32-bit or 64-bit context for the application.wmimgmt.msc: Opens WMI administration. It may help an IT professional investigate management configuration, but casual changes can complicate monitoring and system management.lpksetup: Opens an older language-pack installation/removal workflow where available. Current language options are generally managed in Settings; deployment scenarios can use Windows language servicing methods. See Microsoft’s language configuration guidance.isoburn: Opens the disc-image burning tool where present. It is of little use without a compatible optical drive and writable disc.tabtip: An older touch-input component shortcut whose availability varies. Use the current touch keyboard controls on modern Windows devices instead.wscui.cpl: Opens a legacy Security and Maintenance view, not the modern Windows Security app. For current protection status, open Windows Security from Start or Settings.msdt: Microsoft documents the command but labels the Support Diagnostic Tool deprecated. Prefer current Windows troubleshooters and the specific support workflow for the issue. Microsoft’s MSDT documentation explains its status.
The commands bootim and C:WindowsSystem32rundll32.exe sysdm.cpl,EditUserProfiles need build-specific verification before being treated as dependable shortcuts. For recovery, use the documented Settings → System → Recovery path. For user-profile options, run sysdm.cpl and inspect System Properties rather than relying on an uncertain entry point.
If a command fails
- “Not recognized” or no result: Check spelling first—particularly
lpksetup, notipksetup. The utility may be absent from the edition, removed, blocked by policy or dependent on an optional component. Prefer the corresponding Settings or Control Panel route instead of downloading an executable from a third-party site. - Access denied: Run does not elevate. If the task genuinely requires admin rights, use an elevated Windows Terminal or another administrator-approved route; do not elevate an unfamiliar command just to see if it works.
- The tool opens but cannot complete the task: Check for missing hardware or drivers, disabled services, incomplete parameters, or an operation that requires elevation.
- Different screen than expected: Windows edition, build and legacy-component availability can change the result. Use a current Settings path rather than assuming screenshots or instructions for another release will match.
These commands are shortcuts, not a guarantee of compatibility or a substitute for understanding the change being made. Be especially cautious with environment variables, WMI, authorization settings, printer migration and update packages; preserve original settings or configuration before changing them.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

