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4. If the CD/DVD cannot be read, replace it with a known good CD/DVD such as one
that was shipped with the computer.
5. If the known good CD cannot be read, visually check the operating side of the CD/
DVD for defects.
Problem: The capacity of the hard disk, as indicated by the system, is less than the
nominal capacity.
Troubleshooting and problem resolution: For computers equipped with the OneKey
Recovery feature, the system recovery feature needs to occupy some hard disk space.
This may account for the apparent hard disk capacity deficit.
Further technical explanation: The nominal capacity of the hard disk is expressed in
the decimal system as 1000 bytes. But the actual hard disk capacity is expressed in the
binary system as 1024 bytes (For example, the nominal capacity 1G is 1000M, while the
actual capacity 1G is 1024M).
The capacity of the hard disk shown in Windows can be calculated according to the
calculations in the following example:
The nominal capacity of the hard disk is 40G, while its actual capacity should be:
40G x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 37G.
The capacity of the hard disk shown in the system can be obtained by
subtracting the service partition:
3G x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 2.79G.
The capacity of the hard disk as calculated using this method may be slightly different
from the actual capacity due to the rounding of totals.
Special considerations for
troubleshooting Windows
Record the following information as it may be useful later when troubleshooting system
problems:
The drivers for this computer model only support the Windows 10 system.
Problem: The operating system fails to start up.
Troubleshooting and problem resolution:
If the computer is installed with an Optane memory:
• EnsurethattheOptanememoryisnotremoved.
• ChecktheOptanememoryusingthediagnostictoolthatispreinstalledinyour
computer, to ensure it is not damaged.
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