The SVI folder also stores other important information such as:
- Tracking.log files created by the Distributed Link Tracking Service to store maintenance information.
- Efs0.log files created by the Encrypting File System (EFS) generated during the encryption and decryption process.
- Drivetable.txt which holds the System Restore drive letters list, and stores other configuration information such as System Restore space allocation information for each drive.
- Sr-reg.txt which contains the System Restore registry settings.
- Rstrlog.txt which contains the restore log file for the last completed restore.
- Fifo.log which contains the FIFO (first in first out) restore points if there are any.
- Rp.log or SP-RP.log which contains the list of restore points (name/type/time).
- SR-chglog.log which contains the change log of file operations on each drive for all restore points.
- SR-filelist.log which contains a list of all the files that were collected by Srdiag.exe.
The reason the SVI folder is protected is to prevent programs from using or manipulating the files that are inside. These files are inactive while in the data store and are not used by any utility other than System Restore. You should not be tampering with this folder. Doing so could cause problems with proper system functioning.
By design System Restore
runs in the background and when monitoring is enabled, will automatically create a new restore point every 24 hours (system checkpoints)
. Restore points can also be manually created by the user at any time. When the allotted disk space is reached the oldest restore point will be purged on a first in first out (FIFO) basis. Otherwise, restore points over 90 days are purged automatically
in order to keep the volume's usage within the specified amount. All restore points will eventually be deleted after the time specified in the RPLifeInterval registry setting is reached or earlier if allotted disk space is insufficient so it is not possible to create a permanent restore point.Understanding System Restore in Windows 7 (FAQs)Understanding System Restore in Windows Vista (FAQs)Understanding System Restore in Windows XP
When running Disk Cleanup
and choosing the option for System Restore, it specifically states "You can free more disk space by removing all
but the most recent restore point." However, you can reduce the amount of space made available to System Restore so there will not be as many Restore points. By default, System Restore is given 12%
of the hard disk space when you install Windows XP. To change the amount, right-click on the My Computer icon, select Properties > System Restore Tab, and under Disk space usage
, change the Disk space to use to a lower percentage.