Hard Drive Errors....help!

Hiya,

i have been getting a ton of error messages relating to my hard drive. When they occur, my computer goes very very slow, you cant really do anything on it. These errors are random and occur frequently, sometimes days apart. Is something wrong with my hard drive? I had also disabled the write cache for my hard drive just in case that was the problem. any help appreciated! Here are the error codes:

these error codes below occured around roughly 10 times in total around the same time:

**Error 1:

Details
Product: Windows Operating System
Event ID: 51
Source: Disk
Version: 5.2
Symbolic Name: IO_WARNING_PAGING_FAILURE
Message: An error was detected on device %1 during a paging operation.

Explanation
An input/output (I/O) request to a memory-mapped file failed and the operation was retried.


User Action
If these events are logged regularly on a primary system drive, replace the device. Otherwise, no user action is required.

**Error 2

Details
Product: Windows Operating System
Event ID: 50
Source: Ntfs
Version: 5.2
Symbolic Name: IO_LOST_DELAYED_WRITE
Message: {Delayed Write Failed}Windows was unable to save all the data for the file %1. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere.

Explanation
Windows could not save data from memory to a disk because of problems with network connections or with hardware. The data has been lost.


User Action
If the data is still in memory, try to save it again. To determine the root cause of the problem, look in Event Viewer for messages that indicate problems with your disk or network connection.



**Error 3:
The device, \Device\Ide\IdePort0, did not respond within the timeout period.
Details
Product: Windows Operating System
Event ID: 9
Source: atapi
Version: 5.2
Symbolic Name: IO_ERR_TIMEOUT
Message: The device, %1, did not respond within the timeout period.

Explanation
The attempt to read or write data timed out.

**Error 4:
The system failed to flush data to the transaction log. Corruption may occur.
Explanation
NTFS could not write data to the transaction log. This could affect the ability of NTFS to stop or roll back the operations for which the transaction data could not be written. NTFS could not write data because of one or more of the following reasons:

I/O requests issued by the file system to the disk subsystem might not have been completed successfully.

Thanks,
Ash