WordPress on Shared hosting: “406 Not Acceptable error” fix

Last days I ran into some strange behaviour of this blog. I tried to post a new article and save a Draft. It worked good until I uploaded an image. Saving the draft or saving the post was redirecting me to a non-existing page (404 page error) without saving any changes to my article. I was able to recover some data from the browser backup but again saving was not possible and the information lost. Then I close the browser and any backup was lost for good and that was very … very frustrating.

Therefore I searched for solutions… first thing I found on the internet was linked to my permalink structure. Suggestions are to go to Dashboard and then Settings -> Permalink and save again your permalink settings … and again …. 404 error page. Then I chose the default permalink called “Plain” and I was able to save that change. What was even more frustrated was that I was no longer able to come back to my custom settings. I was getting a Not Acceptable error.

Not Acceptable

An appropriate representation of the requested resource /wp-admin/options-permalink.php could not be found on this server.

Additionally, a 406 Not Acceptable error was encountered while trying to use an ErrorDocument to handle the request.

Came back to my article and with so many frustration and tries, I was able to write and publish it … but my entire website was a fiasco with broken links and no traffic from search engines.

Second fix from the internet was changing .htaccess… Actually something related to mod_security. I start digging for documentation and try with .htaccess fix but no results. This step was not solving my problem but brought me closer to it.

If you host permit, adding the following lines to your .htaccess file will disable your mod_security and fix your problem:

<IfModule mod_security.c>
SecFilterEngine Off
SecFilterScanPOST Off
</IfModule>

In my case this was not working … but I had the inspiration to check in my CPANEL for Mod Security settings. And I was lucky. 1. In CPANEL in the security section you can find ModSecurity:

2. Disable it for your website (be aware of the risks and do it permanently or just when is needed then turn it back on):

3. Do your magic on your blog. Changing back your permalink custom settings will work fine, as well as posting and uploading files.

Take your time and read a little bit about Mod Security. And have fun!

The disk is full trying to write to Macintosh HD.

The disk is full trying to write to Macintosh HD. Free some space on this drive, or save the document on another disk.

Try one or more of the following:
*Close any unneeded documents, programs, and windows.
*Save the current document on another disk.

If you run into this error you might need to check this error first:
Word is unable to save the AutoRecover file in the location you have specified.

Word is unable to save the AutoRecover file in the location you have specified.

Word is unable to save the AutoRecover file in the location you have specified.  Make sure that you have specified a valid location for AutoRecover files in Preferences, and that you have permission to write files to the location you specified.

If you get into this error massage check if there is any location set for the autorecovery files (I had it empty), and change it or set one:

  1. Go to: Word > Preferences (or press ⌘,) > Personal Settings > File Locations.
  2. Either double click on “Autorecover files” or single click and then click on “Modify”.
  3. Pick a folder and then hit “Open” I have it in Documents > Microsoft > Office 2011 Autorecovery.

Avoid folders where Word app can get into trouble with file permission (changing or saving). Also, if you use Desktop or other folder that is synchronized with iCloud, be aware that large documents need more time to upload. A small internet connection might block word access for quite a long time and this message can become quite frustrated.

Windows CE Keyboard Shortcuts / Hotkeys List

Sometimes you have to work with some old devices. Some of them are based on Windows CE operating system. Running into trouble with this devices is quite a pain. Fortunately, if you connect a keyboard you can use a lot of shortcuts to find a work around and troubleshoot.

Ctrl + Alt + Equal (=) Calibrate Touch
Shift + Shift Caps Lock
Fn + Ctrl Numlock, Numeric Keypad
Alt + Ctrl Alt Tap (Right Click)
Alt + Up Key Page Up
Alt + Down Key Page Down
Alt + Left Key Home
Alt + Right Key End
WinKey + Esc Toggle open windows
WinKey (or) Ctrl + Esc Display Start Menu
WinKey + M Minimise All
WinKey + – PC Link
WinKey + / Stylus Configuration Properties
WinKey + C Control Panel
WinKey + E Windows Explorer
WinKey + Run Run Dialogue
WinKey + H Help
WinKey + i Stylus Properties
WinKey + K Keyboard Properties
WinKey +  Space Bar Windows Shortcut Key Help
WinKey + TAB Minimise All
Alt + Tab Task Manager
Ctrl + Alt + Del Task Manager
Ctrl + Alt + Backspace Task Manager
Alt + Esc Cycle Open Windows
Ctrl + A Select All
Alt + Enter Right Tap, Properties
Alt + H Help (in most programs)

How to change US (inches) to Metric (cm) in Office (Word, Excel, PowerPoint)

If you are using metric system and if you are more comfortable with cm, mm instead of inches then you might need to change this setting when you work with images in Office documents or presentations.

This is done very easy by changing your System regional settings:

1. Search for “Regional” or go to Regional Settings in Control Panel

2. Click on “Additional Settings

3. In “Measurement System“, change from “US” to “Metric

And that should be all. Select again your image in Word, Excel, PowerPoint and you will get the size values in Metric units.

Firefox window turned full white, glitches or not responding.

With my new PC, Firefox is crashing very often. I’m finding myself in front of a not responding browser or just a fully white window. In some cases the web-page elements became full black or there are some graphical glitches (in text, images and videos). The solution was to minimize/maximize and wait for some time, change the focus to other app, move one tab to a new window or simply scroll up or down. This solutions sometimes work, but most of the time they doesn’t and I need to open task manager and end Firefox. I have the latest Firefox version (51.0.1) and latest graphic drivers.


Well … the the actual solution to this problem is quite simple. You just need to disable “Disable Hardware Acceleration“.

1. Go to “Menu” -> “Options

2. Go to “Advanced” and disable “Use hardware acceleration when available“.

And that’s all. Hope it helps!

How to rotate text in Preview (macOS)

Have you ever edit your photos on your mac? Have you used the build-in app called Preview? This tool is great, it’s simple and very intuitive. You can select, delete, crop, add elements and much more.

Some of this functions might not be accessible from menu or icons and you have get intuitive to find it. One good example is rotating text.

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