Have you ever seen windows 10 blue screen?

This is first time I saw windows 10 blue screen, but no death, not BSOD blue screen of death.

Cheap and reliable VPN service

VPN service price：
0.40CAD/day

10CAD/month

100CAD/year

400CAD/lifetime


simple and quick setup：

You need only:

1. Send me an email to apply

2. Download and install VPN client

3. From email I sent to you, put the certificate file, key file and configuration file in a folder and specify the folder in the configuration file

4. Launch VPN client, click Connect button, connected to VPN automatically

the above normally needs 5-10 minutes,and there is a guide in my email with pictures, I'll give you up to 7 days extra for you to set up and try.

You only need to provide your email to apply

Paypal: forerunner6 at gmail dot com
Contact: forerunner6 at gmail dot com
pay after try

Convert video format quick free efficient in windows 10

click in search bar at bottom left corner, enter and search movie maker
launch movie maker
drag and drop the video file you want to convert to movie maker window
File -->Save movie, choose a new format

Centos 7 squirrelmail Forbidden You don't have permission to access /webmail on this server.

I followed online articles to install postfix,dovecot and squirrelmail on Centos 7, but got error when accessing http://serverip/webmail:
Forbidden You don't have permission to access /webmail on this server.
in httpd error log: /var/log/httpd/error_log:
AH01630: client denied by server configuration: /usr/share/squirrelmail
after lots of Google search, this is due to httpd 2.4 access control has changed from previous version:
in /etc/httpd/conf/httpd.conf
Order allow,deny
Allow from all
should be replaced by:
Require all granted
then restart httpd:
#systemctl restart httpd
problem solved!
refer to: http://httpd.apache.org/docs/2.4/upgrading.html#access
Very useful tools to find out configuration errors of your email server:
postconf -n
doveconf -n

outlook 2010 this file cannot be previewed because there is no previewer installed for it

the attachment files with .dat extension in outlook 2010 email can not be previewed, error: this file cannot be previewed because there is no previewer installed for it.
Solution:
In Windows Explorer right-click any .dat file and select "Open With..." -> Choose Default Program. Select Windows Notepad there (not Notepad++) and make sure that you have the "default" check set.
Restart Outlook. Now it has to show you .dat files.