User's Manual

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If no errors have been found, click Finish to exit the module.
In some cases it is necessary to restart your computer in order to successfully complete the analysis or repair
process. This can happen, for example, when active programs or Windows itself are using the selected drive
and thus prevent TuneUp Disk Doctor from having exclusive access.
If a system restart is necessary, TuneUp Disk Doctor will show you a corresponding message. You can then
decide if the necessary restart should be performed immediately or if you would like to restart the system
yourself at a later time.
10.2.2. Normal vs. Thorough Analysis
Normal Analysis
Normal analysis takes approx. 1-2 minutes and is generally sufficient.
Normal analysis is carried out in several phases. The table below shows explanations of all possible steps
(only the first three lines are performed during the normal analysis).
Thorough Analysis
Thorough analysis covers all of the steps of the Normal analysis. In addition, your drives will be checked for
physical defects.
Storage space on drives is divided into so-called sectors, which are usually 512 bytes in size each. In order to
detect physical defects on a drive, the thorough analysis checks the performance of each of these sectors.
The length of this analysis depends on several factors, including the size of the drive and the degree of
fragmentation. You should allow at least 5 to 20 minutes.
The following table explains all possible steps.
Analysis step
Explanation
Normal and thorough analysis
Checking files and folders
(NTFS and FAT)
Every element in the file system is checked. The program ensures that the
structures of all files and folders are correct.
Checking indexes
(NTFS only)
Indexes are references to folders in the NTFS file system. If any of these
indexes are damaged, the associated folders will not be displayed in the file
system.
If any of your files or folders have suddenly "disappeared", there is a good
chance that they will be recovered after repairing the file system.
Checking security
descriptors
(NTFS only)
Files and folders in the NTFS file system are usually protected by security
descriptors that prevent access by unauthorized users. During the analysis,
errors in these descriptions are found and corrected.