My uncle uses a Desktop computer. He asked me to clean his computer.

I just opened the CPU and clean the dust.

When i cleaning his CPU then i disconnect every cable. when cleaning completed then i connect every cable but now I can not boot the computer. Normally what could the problem be.

Please tell me about this problem.

I'm unable to connect USB drive. When I'm trying to connect USB, it showing a error message. My pc's has 5 USB port, all USB port are active but it doesn't accept USB drive.

Please as soon as possible give solution so that I can use pen drive.

My computer's hard disk had been damaged after 2 months. Already I've changed 3 hard disk within 8 months. I need a prevention to damaged my hard disk. Currently I'm using 500 GB hard disk. Please let me know, how I can prevent it?

Hello good day to all how can i get the full harddrive space on my computer?

I have a 500GB sata Seagate barracuda and it only show 493 GB also how can i delete a protected file on my harddrive

Hello guys i have a problem here one of my computer exploded its powersupply last night how can i repair this ?

I don't have any money to buy a new one can i still repair this?

I have tried recapping the capacitors but still it wont work it keeps on burning the fuse good day to all and god bless

Hello How can I replace the monitor side buttons in a CRT monitor?

the buttons are all stuck i have tried to disassembly the monitor but there are no screw's ?

and also how can i keep a recap a monitor capacitor?

God bless to all.

hello guys I need help. I have overclocked my video card now it won't even boot! how can i resolve this? i don't have any money to buy a new one. I have tried cleaning the video card but no luck.

I have even replaced the thermal compound now the video card just overheats but the fan still spins and also tell me what kind of video card can I buy for an upgrade I have a pci-e supported board here.

I use Samsung laptop. Last day i install some games. 

When complete install then I open games. 

But when I open then first VGA not supported after a few minute I play games. 

I cancel my games and turn off my laptop. Next day I can not open my Laptop. 

I change my battery. But does not work. 

It can not open. 

So what can I do?

I am use desktop computer but now i face some problem and that is USB Port problem. My mouse system is USB but when i joint my CPU then it got power but does not work.

So what can i do? and what is my solve?

I use desktop computer. Now i face a new problem. My HDD is low memory and some time it show my memory is loss.

But when i restart my computer again and again then it open normally.

So what can i do for this problem?