My mouse get power off when doing a sizable activity? What is the cure

I am having logitech mouse, which is flawless regarding it's drivers etc.

But whenever i scan with avast, or malware bytes and simultaneously hear the song, and browsing the internet, all of a sudden, there occurs, mouse cursor become a arrow point, and stay freezed. when i look at the mouse, i could see , that it lost the electricity. The red light is not glowing.
this situation is worst to have. You do not have any choice, but to force off the computer. Ultimate result, starting problem, repair, repair taking much time, and then chkdsk to restore the orphaned file thro chkdsk..
Nothing works, in that stage. I could not use keyboard, tab and all the songs, application hang.
why this is ? Is there any cure for this behaviour.
My particular question is why mouse getting power off, when all the things are at standstill

No, It was my previous specification. Now, my ram memory is 2.00GB Dual-Channel DDR @ 166MHz (2.5-3-3-7). Even when i have 2 gb memory, i am having this issue.
I tried manufacturer logitech downloads. When i download the same, the pc reports, that it now has higher version than the suggested manufacturer download.
Now, it gets auto detect with msoft compliant HID mouse drivers
The problem sometimes, force shutdown, which resulted in corrupted file locations and resorting to chkdsk always.
There must be some cure. It is logitech mouse, which is powering off itself, leaving a arrow shaped cursor at the screen.
Now my cpu also changed to Intel Pentium D 805
SmithField 90nm Technology
If you face this problem, you cannot do anything with kboard, or tab or any switch. All are as if they are made to stand like and you push off the start button for some time to close.
Abrupt closure leading to start up problem. Would any body recommend some fix. Even i tried advanced registry tweaks from suggested site.
Do malware scan consume the total cpu leading to this? Only updated the latest information now. I do not know, that it is manual. Once given forgot to update. Thought it is auto update. Thanks

Logitech m100r wired mouse.I have downloaded their software, but microsoft drivers override and show, that i am having higher version than the originaal
The registry tweak link is
FAQ: Mouse Randomly Freezing on Windows 7
It seemed to work. But i still get this freeze