BSOD Domain Controller STOP: c00002e2 Directory Services could not start

Today our domain controller had a very bad day and had a bootloop after a reboot. I used recording software to capture the blue screen error: STOP: c00002e2 Directory Services could not start

Then we found a nice article to fix this issue. We had a second working domain controller so if you have the same setup you can use this how to, to fix this problem also. All the credits go to dbutch1976

  1. Restart the server and press F8 key, select Directory Services restore mode.
  2. Log in with the local administrator username and password (hope you remember what you set it to!).
  3. Type cd \windows\system32
  4. type NTDSUTIL
  5. type activate instance NTDS
  6. type files
  7. If you encounter an error stating that the Jet engine could not be initialized exit out of ntdsutil.
  8. type cd\
  9. type md backupad
  10. type cd \windows\ntds
  11. type copy ntds.dit c:\backupad
  12. type cd \windows\system32
  13. type esentutl /g c:\windows\ntds\ntds.dit
  14. This will perform an integrity check, (the results indicate that the jet database is corrupt)
  15. Type esentutl /p   c:\windows\ntds\ntds.dit
  16. Agree with the prompt
  17. type cd \windows\ntds
  18. type move *.log c:\backupad   (or just delete the log files)

This should complete the repair.  To verify that the repair has worked successfully:

  1. type cd \windows\system32
  2. type ntdsutil
  3. type activate instance ntds
  4. type files        (you should no longer get an error when you do this)
  5. type info       (file info should now appear correctly)


Windows IOPS and MB/s benchmarking

You have bought een new system and the first thing what you want to do is check the disk performance (ehhh that’s always the first thing I want to know 😛 )

There  is one tool I always use: ATTO Disk Benchmark


This is a very nice tool to quickly see how fast your troughput is of your new system.

But sometimes you want to check your IOPS. Then you can use another nice microsoft commandline benchmark tool DiskSpd

You can use this parameter to benchmark:

diskspd -b8K -d30 -o4 -t8 -h -r -w25 -L -Z1G -c20G testfile.dat

This example command line will run a 30 second random I/O test using a 20GB test file located on the T: drive, with a 25% write and 75% read ratio, with an 8K block size. It will use eight worker threads, each with four outstanding I/Os and a write entropy value seed of 1GB. It will save the results of the test to a text file called DiskSpeedResults.txt. This is a pretty good set of parameters for a SQL Server OLTP workload.


Orginal article

If you get errors like:

Results for timespan 1:
The test was interrupted before the measurements began. No results are displayed.
Error generating I/O requests

Or file creation errors like “Error opening file: testfile.dat” please try to replace the minus “-” characters with your keyboard. Sometimes your browser copy the wrong character.

Happy benchmarking 😀

IIS Log Analyzer

Download Log Parser 2.2 from the microsoft site. After the installation google is your friend


Hits on a particular page by IP address

LogParser -i:IISW3C "SELECT c-ip, COUNT(*) As Hits FROM C:\WINDOWS\system32\LogFiles\temp\*.log WHERE EXTRACT_FILENAME(cs-uri-stem) = 'default.aspx' AND sc-status = '200' GROUP BY c-ip Order by Hits DESC" -o:DataGrid

Another great way to analyse log files is the tool: Log Parser Studio. With this tool you can easy query loggings with a GUI:

2016-08-25 15_49_33-How To_ Move Music from iPod to PC in 5 Easy Steps


Remove Windows 2008 r2 WinSXS “Windows Update” files

copy C:\Windows\winsxs\amd64_microsoft-windows-cleanmgr_31bf3856ad364e35_6.1.7600.16385_none_c9392808773cd7da\cleanmgr.exe to %systemroot%\System32

copy C:\Windows\winsxs\amd64_microsoft-windows-cleanmgr.resources_31bf3856ad364e35_6.1.7600.16385_en-us_b9cb6194b257cc63\cleanmgr.exe.mui to %systemroot%\System32\en-Us

Run cmd > cleanmgr and remove all the nasty update files!

After I cleaned up the server I had to stop the windows installer service (trustedinstaller.exe) to remove the c:\windows\logs\cbs\CBS.log (6GB file) manually. Maybe a restart of the server do the same but I cannot test it on a production environment.

Have fun!


Convert PFX to PEM and upload the certificate to Plesk

Export the Private Key:

# openssl pkcs12 -in filename.pfx -nocerts -out key.pem

Remove the password from the SSL certificate (unencrypted is needed for plesk):

# openssl rsa -in key.pem -out server.key

Export the certificate:

# openssl pkcs12 -in filename.pfx -clcerts -nokeys -out cert.pem

Now upload the certificate:


And bind the certificate in your hosting settings:


Windows update is looping forever

On my windows 2008 r2 server, Windows update was running forever 🙁

Windows update - Fix - 2

I tried a lot of things but fixing the problem was really simple:

  1. Go to
  2. Download the fixit
  3. Run the fixit and follow the wizard

Then your problem will be fixed automatically 🙂

Still problems? Try this post:

Note: If you have a WSUS server and you still have problems to find windows updates you can try to temporary disable the WSUS client to change the registry key UseWUServer to dword:00000000


Windows update - Fix


Find your fastest DNS server

There is a nice cross-platform open source tool to find out what the best DNS server is for your internet connection.

  1. Go to
  2. Download the namebench tool
  3. Extract and start the tool
  4. Click on “Start Benchmark

2015-08-19 23_40_10-namebench

This benchmark takes some time. About +/- 15 minutes. Then you get the results in your browser:



201% faster name query performance!!! WOW!

When everything is setup you can check your DNS settings with a nice website:


To find the best DNS server for you start the tool at different times during the day.

Happy resolving 🙂

Remove Spyware

First I had a problem with spyware. When I remove that software a crappy browser hijacker came by… ARGGG!!!!

So removing the software is quite easy when you follow this staps

  1. Download superantispyware (free)
  2. Install superantispyware (select free editon)
  3. Run a quick scan
  4. Clean and reboot
  5. Run a full scan
  6. Clean and reboot
  7. Download and run ADWCleaner
  8. Scan and clean


Enjoy your adware free system 🙂