(Something that I wrote some months back, but publishing now)
Sharing one of the biggest problem and its “temporary” resolution that I experienced with my Windows Vista machine in recent past:
One fine day, the windows explorer stopped opening through “windows-key+E” hotkey for me. It started throwing an error popup saying “class not registered”. The similar error was coming in various places, like opening “pictures”, “documents”, “games” from start menu, right clicking on desktop and opening “personalise” etc.
Trying out few of the recent windows system restores did not work, perhaps because I was too late to realise the severity of the problem, and too late in attempting to find the right restore point before it got pushed out of the quota set for SVM (system volume information).
Finally A Way That Worked
After checking what seemed like a million websites, I found a temporary resolution which I since followed – every time I boot computer, I do the following first:
1. Open task manager
2. Kill “explorer.exe” from process list
3. Go to file > new task > launch “explorer.exe”
The “class not registered” error goes away.
But you have do this every time you reboot computer.
Hopefully the mythical “vista service pack 1” will come with a resolution!