Windows Update Error Code 80070308

Description

When you want to do a "Windows Update", error code 80070308 will be shown after installing updates. Rebooting PC, stop Windows Update services and delete everything in C:\Windows\SoftwareDistribution does not resolve this problem

Solution

1) Run "regedit.exe" through Run command (Win + R)2) Locate "HKLM\COMPONENTS"
3) Delete DWORD "PendingRequired"

4) Close Regedit after pressing "YES"

5) Run "Windows Update" again.

Credit: patrickhoban

Solution for Canon MP Navigator "Scan Failed" problem

When you try to use Canon MP Navigator to scan any documents or photo through Canon Multi-Function Printer, it said "Scan Failed" when pressing "Scan". A fix is provided as belows:

First identify "twain_32" folder on your system. Usually C:\Windows\twain_32

Under that folder, find the sub-folder name which match your printer's model (e.g. For MG6270, C:\Windows\twain_32\MG6270)

Edit Environment Variables and Add a New "System Variable" with variable name = Path

Press OK to finish. No reboot is required

Credit: dailytweak