Knowledge base for software setup, errors, and daily tool work.

Fix Windows Activation 502 Bad Gateway Network Error

When activating Windows, you may see a "502 Bad Gateway" network error. This usually means the ac...

BitLocker Network Unlock Error 0x80070035 Fix

When BitLocker Network Unlock fails with error 0x80070035 (the network path was not found), the s...

Fix Version Mismatch and Permission Denied in Windows Update

When running Windows Update, you might encounter a "version mismatch" error followed by "permissi...

MongoDB Authentication Failed: Administrator Checklist

Microsoft Store Offline Installer: Download and Use Guide

If you need to install Microsoft Store apps on multiple PCs or on a device with limited or no int...

Fix Outlook Access Denied to Calendar Permissions

You try to open a shared calendar in Outlook and get an “Access Denied” or “You do not have suffi...