Case Studies – Page 6 – PC Doctor Godalming

Thunderbird 60 gcontactsync Blocked after enabling OAuth2

19/12/2020

These notes apply to Kubuntu 18.04 and Thunderbird 60.9.1.

After Google restricted access for LSA’s (Less Secure Apps) it was necessary to change the Gmail account authentication method from “Normal Password” to OAuth2. After this gcontactsync failed – after logging into Google and successfully allowing access to Contacts it was blocked. After extensively trawling the net for a solution one was found. This said the problem was due to Thunderbird being corrupted and the solution offered was a complete rebuild – drastic but it worked!

Fix Windows 10 Update Failures, e.g. Error 0x800f081f

05/11/2020

Try running DISM and SFC commands to repair Windows system files. Once complete reboot and try running the update again.

DISM /Online /Cleanup-image /RestoreHealth

The above DISM command typically completes without issues, but if there are problems replacing the damaged files, you will need to provide another image using the Source option to complete the task. You can use an “install.wim” or “install.esd” file from another computer, bootable install media, or Windows 10 iso file. Make sure that the files match the version,

Change Windows 10 Users Folder Name

25/10/2020

Run ‘command prompt’ as administrator” and enter following
net user Administrator /active:yes
Sign out
Log in with “Administrator” account. If newly activated wait up until Windows sets up the account
From Start Menu right-click on Start Menu icon and select ‘Computer Management’
If “Local users and groups” not listed run steps below to install Local User and Group Management (lusrmgr.exe) Console for Windows 10 Home
Click on “Local users and groups”
Click ‘Users’.

Add .wps and .xlr Works associations to Office 2010 Starter Edition

25/10/2020

Do the following (with Admin account) to associate .wps (Works document) and .xlr (Works spreadsheet) file types to Word and Excel.

Create Restore point to roll-back in case you make a mistake editing the Registry
Run Regedit
Locate HKEY_CLASSES_ROOT \ .doc
Right-click .doc key and select Export and save to Desktop file as, e.g. docassoc.reg. The contents should look like the sample below.
Repeat steps 3-4 for .xls
Exit regedit
In file File Explorer Copy &

Ubuntu No Sound Audio Output Dummy Device

16/08/2020

If audio output device set to Dummy Device reset audio as follows:

pulseaudio --kill; sleep 2s; sudo alsa force-reload ;
pulseaudio --start

Restart audio application(s), e.g. Spotify

This works with Ubuntu 18.04 and may work for other versions too

Add Suspend icon to the KDE Application Menu

09/04/2020

To add the Suspend icon to the KDE Application Menu

Click the KDE icon (bottom left hand corner) to bring up the Application Menu
Click “Power/Session” on right-hand list to bring up list of Shutdown Options
Right-click Suspend and select Add to Favorites

Similarly you can add or remove other shutdown icons.

HP 7520 WiFi scanning not working Mac OS High Sierra

21/03/2020

If when installing an HP 7520 WiFi printer with HP Easy Start you get a warning that the scanner does not support “Bonjour” then you may end up with a working printer but no scanner!

In most cases this happens because you have a dual band router advertising 2.4GHz and 5GHz on the same SSIDs. In short the HP 7420 only works with the 2.4GHz network.

One solution is to disable the 5GHz network or rename it and only connect the Mac and printer to the 2.4GHz SSID network.

Real World WiFi Speeds

07/12/2019

Real World Wi-Fi Speeds

IEEE standard	Wi-Fi Alliance Standard	Theoretical Speed	Real-world Speed
802.11ax	Wi-Fi 6	10Gps	700Mbps
802.11ac	Wi-Fi 5	1.3Gps	200Mbps
802.11n	Wi-Fi 4	600Mbps	150Mbps

Wireless Broadband Alliance (WBA) real world trials carried out in the “hostile” environment of the Mettis Aerospace facility in the UK West Midlands.

Linux Content Search Tool

25/08/2019

Use Catfish to find files and file content quickly – note content search only works for text type files. Use Recoll for other file types.

Install using Synaptic Package Manager or from Terminal as follows:

sudo apt install catfish

Run it by selecting it from from Utilities or use the Search function and enter Catfish to locate.

Once running you should see screen below.

To search for content first click the settings cog and check “Search File Contents”.

Enable Windows F8 Safe Mode Boot Key

07/06/2019

Follow steps below to enable F8 safe mode boot (applies to Windows 10 and 8.1):

Boot PC using Windows 10 or 8.1 ISO USB flash drive or DVD
Click Next to skip the first screen
Press Shift + F10 To open advanced Command prompt window

Type the following command to enable F8 Safe Mode boot key:

bcdedit /set {default} bootmenupolicy legacy

Type Exit and press Enter to quit the Command Prompt.

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