source

Anyway if you are annoyed by this situation as I am, here is a fast solution :

1. Open the task manager (Ctrl + Alt + Del) and go to the processes tab.
2. Find the firefox process (firefox.exe) and simple kill it (click on the firefox.exe and then the button “End Process”)
3. You are done. Next time you will open Firefox it will ask you to keep or not to keep the previous session.

Open a Command Prompt window and leave it open. Close all open programs

Click Start => Run and enter TASKMGR.EXE

Go to the Processes tab and End Process on Explorer.exe. Leave Task Manager open

Go back to the Command Prompt window and change to the directory the undeletable file is located in.

At the command prompt type “DEL <filename>” where <filename> is the file you wish to delete

Go back to Task Manager, click File => New Task and enter EXPLORER.EXE

Close Task Manager

Ok no problem again with these awful undeletable files. I am not sure if this is working with Windows Vista too, so please comment if you know.

Here is what you have to do :

1) Open the regedit tool (Start -> Run -> regedit.exe )

2) Use the navigation in the left and go to HKEY LOCAL MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management

3) Double click the DisablePagingExecutive attribute, and put 1 in the decimal value field
This will make the drivers and the XP kernel run in memory.

4) Double click the LargeSystemCache attribute, and put 1 in the decimal value field
This will improve performance of the kernel

5) Double click the IOPageLockLimit attribute. On some later versions of windows XP that doesn’t exists, so if this is the case you’re done. Otherwise you have to put to the hex value : 4000 for pcs with 128 mb ram, 10000 for 256 mb ram and if you have more put 40000. This value specifies how many bytes can be used for I/O operations in your system.

That’s it, enjoy your faster pc

If you want to simply disable autoplay in Windows Vista, go to control panel and double click on the “Play CDs or other media automatically” to open the AutoPlay dialog.

Disable autoplay in Windows Vista

To disable autoplay globally, just uncheck the “Use AutoPlay for all media and devices”

Disable for a single type

To disable autoplay for a single type (eg. DVD movies, or audio CDs) first make sure that the “Use AutoPlay for all media and devices” is checked. Select the type that you want to disable and then select “Take no action” from the drop down menu. In the above example we disable autoplay for blank CDs :

1. Right click on desktop, New -> Shortcut
2. Copy/paste this piece of code in the location box: %windir%\system32\rundll32.exe advapi32.dll,ProcessIdleTasks
3. Save the file
4. You are done! Now every time you need some memory double click on your newly created shortcut

In case you are bored to create the file, or you just don’t understand exactly what I write, just download the Memory cleaner from here (right click->Save As).

To avoid such problems you can set windows not to search the file index :

1. Right-click on the Start Button and select Properties.
2. Click on the Customize button.
3. Uncheck Search Communications.
4. Set Search Files to Don’t Search for files.
5. Click OK.