Download AVG Remover - Major. Geeks. AVG Remover completely deletes everything from your current AVG installation including registry items, installation files, user files, etc. AVG Remover is provided by AVG and is the last resort to use if you have a problem removing your current AVG whether it's a failed repair, reinstall or complete removal. Please keep in mind that all AVG user settings will be removed after the uninstall process is complete. Items to be removed include content from the Virus Vault and all other items related to AVG installation and use. You will need to restart your computer once you're finished so be sure to complete your work and save all relevant data before launching AVG Remover. Other apps already exist that can do this including IObit, Revo, and Wise. We recommend using one of those unless AVG support asked you to use this. Finally, AVG Remover is one of those tools most techs will want on hand for that one time you need it. Multiple VSS writers are failing and my backups are failling too. Need. Very often we come across issues, in which the VSS Writers keep failing after two or three backups. It may be a single VSS Writer or many of them from the list we get on running "vssadmin list writers". I have been analyzing some tasks and have found that in cases where after updating the drivers for VSS, deleting the Subscriptions key and re- registering the DLL's, if we still find that the VSS writers fail, then it is not the writers which are at fault. It. is the Providers. First let us understand some background of VSS. ![]() Background data on VSS======================Snapshot: - This is a point in time copy (shadow copy) of a volume. There are 3 important components involved in a snapshot creation. Volume Shadow Copy Service. VSS Writers. 3. VSS Providers. File System. Volume Shadow Copy Service - (volsnap. This is the service which helps in co- ordination ( communication between the OS, the VSS writers, the VSS providers ). The point to note is that VSS ( Volume Shadow Copy Service ) DOES NOT TAKE SNAPSHOTS as we all assume it does. · Hi, Would you please zip these log files and upload to your sharing drive, then post the sharing link here? We do need to check the log file to jude where. Wanna hear more about the Windows 7 KB971033 Update? Installed Windows 7 SP1 and need to activate? You have come to the right place! Scroll down below for additional. · Problem: Exchange Management Console in Exchange 2010 will not open and references a server that is down or has been removed from the environment. Error. · This is using MS Windows 2008 R2 server. in Windows Backup, there was a daily backup schedule to run at 1:00 am on weekday, to backing up EFI System. It just helps other components. Writers, Providers & OS ) communicate with each other effectively. Any transaction has to go through this service. VSS Writers ===========On a Server, we have a database for everything. For example, on a clean installed system, we have a database for the Registry, System, DCOM etc.. OS. If we add SQL to the server, then a database for SQL is created. If we further add Exchange, database for Exchange is created. VSS Writers are the ones who prepare the database for a snapshot ( shadow copy creation ). Again, VSS Writers do not take snapshots. They just prepare the database for a snapshot creation. For example, there could be open transactions for Exchange, SQL, Registry, DCOM etc.. If we take a snapshot without preparing them first, the snapshot might be corrupt due to open transactions. For a perfect snapshot, these open transactions have to be closed first. The data in memory has to be flushed and further transaction have to stopped. This is achieved by VSS Writers. The OS comes with some default writers like Registry Writer, System Writer, COM+ Writer etc. Writers like Exchange, SQL, IIS are not preinstalled on the system. The moment we install Exchange, Share. Point,IIS or SQL, their writers are also installed. It comes with the package of the individual component. So, the registry writer will flush everything in its own database and stop further transactions ( read/write operations in registry ) during a snapshot creation process. Same goes for Exchange Writers. This will also flush existing transactions ( read/write operations ) in its own Exchange database before a snapshot can be taken. The writers will not interfere with each other as they are only responsible for their own database. VSS Providers=============Now, these are the ones responsible for taking a snapshot. It is the most important part of a shadow copy creation. By default, we always have the "Microsoft Software Shadow Copy Provider" also known as "swprv. If we add a backup program like Storage. Craft, then a provider from Storage. Craft named "Storage. Craft Shadow Copy Provider" will be installed on top of the default provider and will be used as the default provider. Further if we add Symantec Backup Exec, then a provider from Symantec will also be installed on top of the other two and will be used as the default provider. Note: When we run the command "vssadmin list providers" - The one that comes up on the top of the list, is the one installed last, and is the one used by default. Sometimes, the providers may conflict or may malfunction. If the providers fail to do their job, it also affects the writers. It may cause the writers to fail too and generate event errors like Event id 8, 1. Viewer. File System===========Also known as NTFS. OS. Without a file system, nothing is possible. Further explanation not required for this. If you want to learn about file systems, please GOOGLE. WHAT HAPPENS WHEN WE INITIATE A BACKUP using VSS================================================1. We initiate a backup using a backup application. The request is sent to Volume Shadow Copy Service ( VSS ) or volsnap. The VSS informs the respective writers that a snapshot creation is going to happen, so they must flush everything and freeze their databases for a a few seconds. The maximum time VSS writers can freeze their databases is for 6. Once the VSS writers complete their job ( have flushed and freezed the database ), it informs Volume Shadow Copy Service ( VSS ), that they are ready now. The VSS then informs the providers to take a snapshot. A snapshot is taken which takes a maximum of 1. Once a snapshot is taken, it informs VSS that its job is done. Then the VSS informs the VSS writers that a snapshot has been taken and that they can release the database. Everything comes back to normal and the backup operation is started using the snapshot taken. TROUBLESHOOTING WITH VSS========================In case of a backup failure, we must first check the drivers associated with the VSS backup. These drivers are : 1. Volume Shadow Copy service ( volsnap. XP, Server 2. 00. Server 2. 00. 3 R2 and SBS 2. Vista, Server 2. 00. SBS 2. 00. 8 - http: //support. Seven, Server 2. 00. R2 and SBS 2. 01. EN- US2. NT File System ( NTFS. XP, Server 2. 00. Server 2. 00. 3 R2 and SBS 2. Vista, Server 2. 00. SBS 2. 00. 8 - http: //support. Seven, Server 2. 00. R2 and SBS 2. 01. The Microsoft Software Shadow Copy Provider ( swprv. If we have other providers installed, which could be Storage. Craft provider, Symantec providers and Acronis Providers, we need to make sure that their files are also updated. Some of them we commonly find are stcvsm. Others may also be there and we need to search it out. Your best friend GOOGLE, please use it. PHASE 2- -- -- -- -This step is performed only when we find the VSS writers in a failed state. If we find the writers stable and still backups fail, or we get errors, please do not perform this step. In case, the VSS writers fail, we may delete the following registry key, after of course backing it up and reboot the server. HKLM/Software/Microsoft/Event. System/{2. 6c.../Subscriptions. This key will automatically be re created on restart and writers should come back in stable state. Writers in Waiting for completion state is not a problem. This is as good as Stable. We can do this on Server XP, 2. Vista, 2. 00. 8, Seven and 2. R2 OS. One more thing to note. If we have only a single writer in a failed state, which would always be either SQL, EXchange, IIS or NTDS, then we need to restart their respective service from Service Console. If they fail repeatedly, then make sure that the application and its components are updated. Consult their respective engineers once. Make sure that the latest service packs and rollups are installed. In case of NTDS writer failure in Server 2. If the issue still persists, please inform your TL and engage a Setup/Perf engineer. You may need to create a task and assign to Setup/Perf bin. In this case we will have to enable VSS trace and check out further. Note: After deleting the Subscriptions key and rebooting, the subscriptions key is back in registry. However when we do, vssadmin list writers, nothing may be listed. In this case we register the VSS dll files. For the list of dll files to register please check KB : http: //support. DLL registration has to be done only on Server 2. PLEASE DO NOT REGISTER DLL FILES IN VISTA, 2. They might break other components. PHASE 3=======Doing the above two, would generally resolve 8. If we find that the issue is re occurring, or we have VSS event errors, it may be the providers causing the issue. If the snapshot creation does not happen properly, it may affect the writers. Please check the providers using vssadmin list providers. If we find any other provider, other than Microsoft Software Shadow Copy provider, we need to remove it from the list. To do this: Start registry editor. HKLM/System/Current.
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