How to mend System Find Install

every time i downloade my phone says downloaded jat are invalid?

Excel?

how can i get a copy of installation software for my lexmark z645 printer?

how to get to the f8 safe mode as my system will not work?

The printer spooler is not starting automatically?

laptop not workin..Any idea's what could be wrong & if it can b fixed?

Task Manger?

how can i recover my pan drive sandisk 4gb 2009?

problem in sony vaio 16 gb pendrive?

How can i fix my task manger?

Excel issues Help?

windows vista or 7 cd wanted?

I have a havit pc camera but i have lost its driver cd ?

sat nav in hondacrv?

How can I mount different folders per user with Ubuntu?

How can I make my computer suspend properly?

Windows Xp... The end?

Why has my fruit machine stopped working?

how to fix my acer laptop 5630?

how to fix Windows 10?

Windows 8 product key?

RPC Server unavailable error when attempting to print or download software?

My window media player has a problem of not playing the video up to its end?

unable to open folder?

Cut and paste not working?

ep?

when i open my computer it takes long time what can i do?

message remove?

where is the fuse for a mk3 mondeo windscreen washer?

seagate external hard drive wont work 500gb?