Dear Sir or madame
 My version of pc is an Acer Aspire M5640, intel (R) Core(TM) DUO CPU [email protected], 4GB RAM, NVIDIA GEFORCE *^)) GS Windows vista (TM) Home Premium 32 bit
I did a disk clean up also with the section to get rid of the shadow copies and to have a recent restore point.
Then i restarted the computer and I hear a noise during starting a bonk sound every few seconds for a couple of min. Then it stops. It has been driving me up the wall every time I START the computer. I check the PERFORMANCE section and it said with a pop up " These startup programs are causing Windows to start slowly. File name Disc Space Cleanup Manager for Windows.
I checked with help section and it said to DISABLE this in the startup running programs in windows defender to disable it. I did it several TIMES and it still is making the same sound. I am very tired  trying to fix this. The noise is something like  when you have just pluged in a new hardware you loaded than it continues for over 2 min or so.Going like bonk, bonk, bonk, and bonk.
I checked performans and the new plash player was not PROPERLY installed. So I reinstalled it. uninstalled the printer and installe it back and still the same 4 bonk sounds. I disconected all the usb ports and the monitor with just the plug for the pc vista and still doing the same. Can you help are u infected with anything ?

have u contacted acer about the issueI would like to thank you for responding
 I contacted Microsoft because Acer would not help me because my warranty ran out by 3 days and they wanted 99. for a half hour. I contacted Microsoft and they fixed the problem.
 The problem was in the device manager under potable devices they all had a yellow triangle with a ! in it so none of the drivers were working. Also they fixed the disk cleanup manager starting up when I start the computer. Finally no more bonk noise. I want to wish you a merry Christmas and Microsoft never chared me anything to fix my computer< YAHOO!!!
 Sincerely tmsc