One time, I was trying to open the Windows Vista’s Sidebar to check a cool gadget. Unfortunately, after trying to open it several times by clicking on the icon in the Start menu, it won’t open. I tried rebooting my computer but still no luck.

I’ve searched in the internet for solutions. I tried so many solutions until I found the solution below that worked for me. I’m pretty much sure that there are people out there who encountered the same problem which sometimes resulted to reinstallation of Windows Vista.

Step by step to make the Windows Vista Sidebar open again:

1. Click “Command Prompt” found under “Start Menu>All Programs>Accessories”.
2. Type “cd \Program Files\Windows Sidebar” in the Prompt then press enter.
3. Type “regsvr32 -u sbdrop.dll” in the Command Prompt then press enter.
4. Type “regsvr32 -u wlsrvc.dll” in the Command Prompt then press enter.
5. Type “regsvr32 atl.dll” in the Command Prompt then press enter.
6. Type “regsvr32 sbdrop.dll” in the Command Prompt then press enter.
7. Type “regsvr32 wlsrvc.dll” in the Command Prompt then press enter.
8. Try to open Windows Vista Sidebar again.

I hope this solution helps people who are encountering the same problem.