Windows Memory Diagnostics Tool is a very useful troubleshooting application included in the Windows operating system. There are times when your computer might start to fail and freeze or reboot on its own. This tool can help you to detect if these problems are caused by memory errors or not. It tests the Random Access Memory (RAM) on your computer and reports the errors that are found.
In this guide we will show you how to use this tool for troubleshooting memory problems.
Windows Memory Diagnostics Tool can be found by typing the word “memory” or “MdSched.exe” in the Start Menu search field.
Also, the mdsched.exe file can be found in the C:\Windows\System32 folder.
In Windows 10 this tool is called “Windows Memory Diagnostic”.
When the program starts you have two options: Restart now and check for problems or Check for problems the next time I start my computer. Choose the option you prefer.
When the computer is restarted the Windows Memory Diagnostics Tool starts automatically. While the tool runs, you will see a progress bar indicating the status of the test.
Windows Memory Diagnostics Tool offers some configuration options. To access them, press F1 and the following screen will be loaded.
Here you can adjust the following settings:
- Test mix – Choose what type of test you want to run: basic, standard or extended.
- Cache – Choose the cache setting you want for each test.
- Pass count – Type the number of times you want to repeat the tests.
To apply the selected configuration options, press the F10 key and Windows Memory Diagnostics Tool will make the memory test according to your options.
Once the test is done, Windows Vista will restart automatically.
If the Memory Diagnostics Tool does not find any errors, you’ll get a message that no errors were found. If the Memory Diagnostics Tool detects problems with your computer’s memory, contact your computer or memory manufacturer for information about fixing the problem.
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Where are the results?
Knowing exactly what Vista’s Memory Diagnostics Tool found would be extremely useful, especially if I have to contact somebody to fix it. Telling them, “Gee, I don’t know what the problem is, but Vista’s Memory Diagnostics Tool said I should call you to fix it” puts a strain on my credibility.
Results are..
It’s simple, either it is working 100% or the memory is faulty. As simple as that, there cannot be 98% working memory since DIMM modules(actual RAM) is addressed RANDOMLY, so you don’t need to know any more specific information. So even when you have single bit of a RAM module faulty, you need to replace your RAM.
Which BANK the faulty RAM is actually is another story…
I used the memory
I used the memory diagnostics tool and now every time I turn on my computer it shows up and runs again, I didn’t get any results after the test and now there is a memory diagnostics tool tray icon showing on my taskbar. ??????? Somebody help please!
Me too.
Same thing for me, it runs in my taskbar all the time I can’t turn it off I want it gone my memory is fine , did you get any info on this?
Vista Memory Diagnostics Tool Results
Does anyone know how to find the results of this test? I ran it thinking that a message would popup when Vista rebooted as the instructions seem to suggest. No such message appeared. I do not know if it passed or failed. Knowing which address failed would make it possible to determine which memory SODIMM to replace in my laptop, if any. BTW – I did not get an icon in the Task Notification area nor does the test run every time I start my machine, as others have reported. I am on Vista SP1.
Diagnostics tool on tray
I did the test, and watched the test as it went along while the test said “didn’t find any problems yet”. It said that all the way up until the computer rebooted.. so you would figure It didn’t find anything, and you would get a report like it said when you log back on.
Well, logging back on, the diagnostics tool is in the system tray, and you can try to click on it or whatever, but it doesn’t open, it doesn’t do anything.
What the heck is this. No one has posted a response to this problem. Did anyone figure anything out???!
Email me at “senicova@aol.com”
Thanks/
Winows diagnostic tool
When finished windows rebooted and in the system tray a notice flashed for about 10secs No Problems Found
Test results in system logs
I also couldn’t find the Memory Diagnostics Tool results in the system tray, but I did find them in the system logs.
My Computer>Manage>Event Viewer>Windows Logs>System
From there you can browse for the results or use “Find…” to search for “Memory”.
>”The Windows Memory Diagnostics Tool tested the computer’s memory and detected no errors”
Good Luck
Results – Here They Are
To find the results of your Windows Memory Diagnostic Tool after the computer restarts, do this:
1) Right-click on COMPUTER in your Vista start menu and choose MANAGE.
2) In the Computer Management screen that pops up, expand the EVENT VIEWER in the left-hand panel by clicking on the little arrow to the left of the words EVENT VIEWER.
3) From this expanded menu, expand WINDOWS LOGS.
4) On this expanded menu, left-click on SYSTEM.
5) Now, the middle panel will be populated with a huge number of events. To find the one you’re looking for, click on FIND in the right panel.
6) In the Find window, type “MemoryDiagnostics” (all one word, but without the quotes) and click the FIND NEXT button. (Note: you could just type “memory” and still find what you’re looking for.)
7) Now, in the panel below, you’ll see two tabs: GENERAL and DETAILS. Click on DETAILS.
8) Now, you’ll see data about your test. If the test passed, you’ll see the word PASS on about the fifth line down next to COMPLETION TYPE.
NOTE: I ran this test using the EXTENDED option and two passes. On my Vista 64-bit machine with 4GB of memory, it took 3 hours and 28 minutes to finish. If you want to time yours, compare the time next to MemoryDiagnostics-Results with the time next to MemoryDiagnostics-Schedule.
Alan
http://www.PhotoCitizen.com
Information for Traveling Photographers
Memory Diagnostics Results
Running MDRes.Exe in System32 causes a message with the basic result (pass/fail) to appear briefly in the Notification Area but for the details the suggested search of the system log seems to be the answer.
Thank you running Win 7 64
Thank you running Win 7 64 Bit and following these instructions got me to see that memory test Pass. It did flash on my screen, but was so fast didnt see results ty so much for this post
Windows Memory Diagnostics Tool
Hi Alan,
Your instructions were spot-on !! Thank you so much. I can now assess whether or not to transfer the memory to another (new ) machine with only 4Gb !!
Cheers,
Xiamon
does anyone knows how to trun off the memory program?
I ran the windows memory diagnostics tool program but did NOT get any feedback.
now the program is still running on my task bar.
does anyone knows how to trun off the memory program??????
A problem with RAM
Maybe you can help me… After runnig a MDT on extended settings with two passes, progress stops on 10% and won’t go (waited 3 hours), but test doesn’t freezes (I can exit or change settings).
I have 4 GB OCZ DDR-3 with raised voltage to 1.84 V.
DITTO……….
mine does the same thing at 10 percent i have 8 gigs ocz sli ready ram.
I have 3x2GB (6GB) of OCZ
I have 3x2GB (6GB) of OCZ gold RAM (and have been having really bad stability issues with Windows 7). I ran the extended test and it too hangs at 10% but after a couple of hours it continued and then stuck again at 80% and at 90% but did complete. I have read that WMT only checks the first 4GB RAM, so I removed 1 bank and ran the tests again. My extended test failed twice in a row, so I’ll be looking to contact overclockers agin.
Every time I try to run the
Every time I try to run the memory tool I get the error “A problem is preventing Windows from checking for memory problems during startup Try to check for problems again by running the tool manually”
Whats the deal and how do I run it manually? Ive never used it before
memory diagnostic tool – vista shut down during diagnostic
during memory diagnostic tool, vista shut down after 50% 1st time, 2nd time 38% and 3rd time after 30% of diagnostic. Reason for doing diagnostic is my vista when started it displays “Muicrosoft ONECARE STOPPED WORKING then it locks all the program. Not be able to start any other program, including system restore and it just locks everything. then done sytem restore from safe mode, now window goes blank after windows logo then “WELCOME”, only thing I can do is CTRL+ALT+DEL to show task manager nothing else.
a problem with memory diagnostic tool
i have a problem with my memory tool…
everytime i turn my computer on it does the test and runs on continuously SOMEBODY HELP PLEASE!
Memory Test
The moral is, because a web site says do something does not mean it’s a good idea. Check lots of sites first and always read what others have said before you do a thing.
I think running Memory diagnostics slowed my computer down
I tried running a memory diagnostic, no reason to, and it slowed my computer down considerably, so if you can help me on that would be awesome
David
Windows Memory Diagnostic Paralysis
I followed the instructions to run the Windows Memory Diagnostic tool on my HP desktop at next startup. I have done the next startup, and the monitor is black. No screen ever came up, and my computer is totally unresponsive after an hour. Ctrl+Alt+Del does nothing either. I ran the test because over the last several months my computer has become painfully slow. Most of the time it seems that it has something better to do and ignores me, greying out the application I am trying to work on and ignoring me for minutes at a time in favor of whatever it wants to do. Something must be wrong, but it has never done anything like this. help?
fix for problems found after using mem diagnostics tool
Would doing a restore point reload fix my memory problems?
Windows Memory Diagnostics Tool
Windows Memory Diagnostics Tool offers some configuration options. To access them, press F1 and the following screen will be loaded.Here you can adjust the following settings:
Test mix – Choose what type of test you want to run: basic, standard or extended.
Cache – Choose the cache setting you want for each test.
Pass count – Type the number of times you want to repeat the tests.
To apply the selected configuration options, press the F10 key and Windows Memory Diagnostics Tool will make the memory test according to your options.
Once the test is done, Windows Vista will restart automatically.
If the Memory Diagnostics Tool does not find any errors, you’ll get a message that no errors were found. If the Memory Diagnostics Tool detects problems with your computer’s memory, contact your computer or memory manufacturer for information about fixing the problem.
the system is going on testing. i want to know what happen laptop .
it is due ram flaut.or cpu fan speed.
please help solution for it
ran diagnostic and now the computer won’t boot
Hello,
I ran the diagnostic and now my computer will not go to the log in screen… goes through booting screen okay… is there a fix? and does this mean that the data on the hard drive is gone?
Fixed Black Screen After MDSCHED
First of all it took over 17 hours to run MDSCHED on my PC. I used the “extended” test setting and have 16GB of RAM. Be patient with this tool as long as you don’t see any error messages.
I had a blank / black screen after reboot. Windows would start but I had no video. The boot was different in that the bios options (for entering bios setup) were never displayed. I have an EVGA 920 SC video card. It costs over $200 so I was worried. First I noticed it would boot ok in safe mode and my video drivers looked fine. I unplugged it and took out the video card to see how it would boot with onboard graphics (not using video card). I realized this is my PC that does not have onboard graphics! I put the video card back in, plugged PC back in, and everything was fine.
I think it was the unplugging the PC for a while that actually fixed it. I’m suspecting something early in the boot process gets corrupted and remains corrupted until power is completely removed. I had my PC unplugged for several minutes. It may only require 10 seconds but give it a good time to sit and drain all components.
Good Luck!