Damn Vista - I really miss the space usage slider that we love in XP System Restore. Anyway did you know that Vista System Restore is set to delete points after about 136 years? Who will still be around running the same Vista PC 136 years later? Is this M$ joke? I was looking for a registry edit to allocate the space usage (& found it HERE - along with the 136 years info). I find this registry edit the best option available in Vista. i_XpUser

People in museums 136 years from now will be disappointed. :) Seriously if a pc running for a 136 years and someone reverts back 136 years, the revert back date would prob screw up the programs that ran for 136 years straight to the point where you couldn’t revert at all due to a restore point error from that long ago. Heck, I used to get some programs errors after reverting back to a 6 month restore point I let alone 136 years.

Hexadecimal "FFFFFFFF" is the maximum that can be stored in 64 bits. In decimal it represents 4.295 billion (more than 136 years in seconds). The year 2037 could pose a problem similar to the so-called "millennium bug", unless we go to 128 bit addressing.

Actually 'FFFFFFFF' is 32 bits. For 64 bits 'FFFFFFFFFFFFFFFF' maybe you could go back several billion years. :-)