How to solve critical error after updating to PHP 7 or above – WordPress solution

This can be caused by a faulty plug-in.
1. Go back to a php version that the website works.
2. Then in WordPress de-activate all the plugins via Dashboard->Plugins menu button on the left.

3. In case you are unable

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How to print large A3 poster with A4 size paper, print with no margin in Adobe Acrobat

In Adobe Acrobat,
1. File->print.
2. Select the ‘poster’ button.
3. fill in the sclae.
4. Select the standing or portret printing option.

Print posters and banners using Acrobat or Reader
https://helpx.adobe.com/acrobat/kb/print-posters-banners-acrobat-reader.html

How to avoid Margin:

1. Open Adobe Acrobat

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Installing 802.11 n USB Wireless Network Wifi Adapter

Installing 802.11 n USB Wireless Network Wifi Adapter

You can buy the adapter via  Ebay:
https://www.ebay.com/b/USB-Wi-Fi-Network-Adapters-Dongles/45002/bn_317564

‘Driver for Windows 7 64 bit:
IS_Setup_ICS_081414_1.5.38.101.exe

To use the adapter:
There are many software for using the wifi adapter.
For example:  Virtual Router

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