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I recently upgraded Roundcube Mail to the latest version, but had been getting the following error when it tried to upgrade the database schema: ERROR 1215 (HY000) at line 2: Cannot add foreign key constraint In resolving this, I came across the useful article "Dealing With MySQL Error Code 121...

I recently starting having a strange problem. Video on my computer became “jerky.” For example, things would look normal for about a second but then the video would “pause” for a fraction of a second before resuming. The audio was just fine, but I kept seeing this slight “jerk” in everything I looke...

Also, see this for an additional registry location that sets folder icons: https://www.tenforums.com/tutorials/812 ... -10-a.html.

There are several third party tools that can give you this information (I use LockHunter ), but there is also a little-known built-in tool that does this. At an administrator command prompt, enter the command openfiles /local on and reboot. When you try to delete a file that is in use, the error dia...

So, I can't say if it was because of disabling the Runtime Broker service, because of deleting the "system" desktop.ini files (which still should have nothing to do with anything but folder customization), the two of them together, or something else altogether—such as the Anniversary updat...

I've always hated this. I also have my Downloads and Pictures folders pointing to an arbitrary "C:\Downloads" directory that I use. With the Anniversary update to Windows 10, not only did this file get automatically recreated in this directory every hour or so, but the name of the director...

Click here for an article from Winaero that describes how to do this. Essentially, you need to take ownership of HKEY_CLASSES_ROOT\AppID\{CDCBCFCA-3CDC-436f-A4E2-0E02075250C2}, then rename (or delete) the RunAs entry. It also says to change ownership back to what it was once you're done - and there'...

A side effect of this is batch files. If you've set a default working directory for cmd.exe, batch files will use that as their working directory, rather than the directory where the batch file is located. To override this in the case of a particular batch file, add the following command at the top:...

1. Run regedit and navigate to HKEY_CURRENT_USER \ Software \ Microsoft \ Command Processor.
2. Add the string "Autorun" and give it the value "cd /d C:\Directory" (replace this with the actual path).

1. Run regedit and navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers. (If Layers doesn't exist, create it.) 2. Add a string named "C:\Directory\executable.exe" (replace this with the actual application) and give it the value "RUNASADMIN&q...

With the latest incarnation of udev, eth0 may not longer be used. To find out the new name of your NIC, check in /sys/class/net . It mght also be obtained from the output of either /bin/ip link show or /sbin/ipmaddr . Once you have the new name: Rename /etc/init.d/net.eth0 to / etc/init.d/net.$NEW_I...

With Windows 7+ the "Versions" tab in Explorer was removed and replaced by a much less informative "Details" tab. A shell extension that replaces the "Versions" tab can be found here, and a direct download is below.

Save the following .reg file and import it: Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\*\shell\pintostartscreen] "MUIVerb"="@shell32.dll,-51201" "NeverDefault"="" "Description"="@shell32.dll,-51202" "MultiSelectModel"...

I recently discovered that when I did a search for books by author from the Speculative Fiction section of my Web site (which I'd recently converted over to WordPress), it would simply return me to my home page rather than showing me the results. I fixed this by changing the PHP code in my Wordpress...